Add Key.keyHintLabel and remove Key.keyHintIcon

This change also removes manualTemporaryUpperCaseCode and
manualTemporaryUpperCaseHintIcon.  Instead of these keyLabelOption now
has hasUppercaseLetter flag value.

Bug: 4436327
Change-Id: I88fdac1e888a7123735296f5ef45f5fdd565cd2e
diff --git a/java/res/drawable-hdpi/key_hint_at_holo.9.png b/java/res/drawable-hdpi/key_hint_at_holo.9.png
deleted file mode 100644
index b93c2d3..0000000
--- a/java/res/drawable-hdpi/key_hint_at_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_at_large_holo.9.png b/java/res/drawable-hdpi/key_hint_at_large_holo.9.png
deleted file mode 100644
index 2b92951..0000000
--- a/java/res/drawable-hdpi/key_hint_at_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_colon_holo.9.png b/java/res/drawable-hdpi/key_hint_colon_holo.9.png
deleted file mode 100644
index 8fa17e5..0000000
--- a/java/res/drawable-hdpi/key_hint_colon_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_colon_large_holo.9.png b/java/res/drawable-hdpi/key_hint_colon_large_holo.9.png
deleted file mode 100644
index 1271341..0000000
--- a/java/res/drawable-hdpi/key_hint_colon_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_comma_holo.9.png b/java/res/drawable-hdpi/key_hint_comma_holo.9.png
deleted file mode 100644
index 44220ec..0000000
--- a/java/res/drawable-hdpi/key_hint_comma_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_comma_large_holo.9.png b/java/res/drawable-hdpi/key_hint_comma_large_holo.9.png
deleted file mode 100644
index 444b4d0..0000000
--- a/java/res/drawable-hdpi/key_hint_comma_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_exclamation_holo.9.png b/java/res/drawable-hdpi/key_hint_exclamation_holo.9.png
deleted file mode 100644
index d5e6884..0000000
--- a/java/res/drawable-hdpi/key_hint_exclamation_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_exclamation_large_holo.9.png b/java/res/drawable-hdpi/key_hint_exclamation_large_holo.9.png
deleted file mode 100644
index 5dab2f6..0000000
--- a/java/res/drawable-hdpi/key_hint_exclamation_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_num0.9.png b/java/res/drawable-hdpi/key_hint_num0.9.png
deleted file mode 100644
index 271264e..0000000
--- a/java/res/drawable-hdpi/key_hint_num0.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_num1.9.png b/java/res/drawable-hdpi/key_hint_num1.9.png
deleted file mode 100644
index eaf3742..0000000
--- a/java/res/drawable-hdpi/key_hint_num1.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_num2.9.png b/java/res/drawable-hdpi/key_hint_num2.9.png
deleted file mode 100644
index 8a16571..0000000
--- a/java/res/drawable-hdpi/key_hint_num2.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_num3.9.png b/java/res/drawable-hdpi/key_hint_num3.9.png
deleted file mode 100644
index 34b5011..0000000
--- a/java/res/drawable-hdpi/key_hint_num3.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_num4.9.png b/java/res/drawable-hdpi/key_hint_num4.9.png
deleted file mode 100644
index d4cc250..0000000
--- a/java/res/drawable-hdpi/key_hint_num4.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_num5.9.png b/java/res/drawable-hdpi/key_hint_num5.9.png
deleted file mode 100644
index 6a054b4..0000000
--- a/java/res/drawable-hdpi/key_hint_num5.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_num6.9.png b/java/res/drawable-hdpi/key_hint_num6.9.png
deleted file mode 100644
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--- a/java/res/drawable-hdpi/key_hint_num6.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_num7.9.png b/java/res/drawable-hdpi/key_hint_num7.9.png
deleted file mode 100644
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--- a/java/res/drawable-hdpi/key_hint_num7.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_num8.9.png b/java/res/drawable-hdpi/key_hint_num8.9.png
deleted file mode 100644
index ea7f512..0000000
--- a/java/res/drawable-hdpi/key_hint_num8.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_num9.9.png b/java/res/drawable-hdpi/key_hint_num9.9.png
deleted file mode 100644
index 0bf85de..0000000
--- a/java/res/drawable-hdpi/key_hint_num9.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_plus_holo.9.png b/java/res/drawable-hdpi/key_hint_plus_holo.9.png
deleted file mode 100644
index a11b4ac..0000000
--- a/java/res/drawable-hdpi/key_hint_plus_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_plus_large_holo.9.png b/java/res/drawable-hdpi/key_hint_plus_large_holo.9.png
deleted file mode 100644
index 3c87c1f..0000000
--- a/java/res/drawable-hdpi/key_hint_plus_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_question_holo.9.png b/java/res/drawable-hdpi/key_hint_question_holo.9.png
deleted file mode 100644
index 670b4b9..0000000
--- a/java/res/drawable-hdpi/key_hint_question_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_question_large_holo.9.png b/java/res/drawable-hdpi/key_hint_question_large_holo.9.png
deleted file mode 100644
index 692f4a6..0000000
--- a/java/res/drawable-hdpi/key_hint_question_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_quote_holo.9.png b/java/res/drawable-hdpi/key_hint_quote_holo.9.png
deleted file mode 100644
index 9cc8615..0000000
--- a/java/res/drawable-hdpi/key_hint_quote_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_quote_large_holo.9.png b/java/res/drawable-hdpi/key_hint_quote_large_holo.9.png
deleted file mode 100644
index 664467b..0000000
--- a/java/res/drawable-hdpi/key_hint_quote_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_underline_holo.9.png b/java/res/drawable-hdpi/key_hint_underline_holo.9.png
deleted file mode 100644
index 2cb4077..0000000
--- a/java/res/drawable-hdpi/key_hint_underline_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-hdpi/key_hint_underline_large_holo.9.png b/java/res/drawable-hdpi/key_hint_underline_large_holo.9.png
deleted file mode 100644
index 6b9a491..0000000
--- a/java/res/drawable-hdpi/key_hint_underline_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-land-hdpi/key_hint_at_holo.9.png b/java/res/drawable-land-hdpi/key_hint_at_holo.9.png
deleted file mode 100644
index b93c2d3..0000000
--- a/java/res/drawable-land-hdpi/key_hint_at_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-land-hdpi/key_hint_at_large_holo.9.png b/java/res/drawable-land-hdpi/key_hint_at_large_holo.9.png
deleted file mode 100644
index 2b92951..0000000
--- a/java/res/drawable-land-hdpi/key_hint_at_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-land-hdpi/key_hint_colon_holo.9.png b/java/res/drawable-land-hdpi/key_hint_colon_holo.9.png
deleted file mode 100644
index 8fa17e5..0000000
--- a/java/res/drawable-land-hdpi/key_hint_colon_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-land-hdpi/key_hint_colon_large_holo.9.png b/java/res/drawable-land-hdpi/key_hint_colon_large_holo.9.png
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index 1271341..0000000
--- a/java/res/drawable-land-hdpi/key_hint_colon_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-land-hdpi/key_hint_comma_holo.9.png b/java/res/drawable-land-hdpi/key_hint_comma_holo.9.png
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--- a/java/res/drawable-land-hdpi/key_hint_comma_holo.9.png
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diff --git a/java/res/drawable-land-hdpi/key_hint_comma_large_holo.9.png b/java/res/drawable-land-hdpi/key_hint_comma_large_holo.9.png
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--- a/java/res/drawable-land-hdpi/key_hint_comma_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-land-hdpi/key_hint_exclamation_holo.9.png b/java/res/drawable-land-hdpi/key_hint_exclamation_holo.9.png
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index d5e6884..0000000
--- a/java/res/drawable-land-hdpi/key_hint_exclamation_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-land-hdpi/key_hint_exclamation_large_holo.9.png b/java/res/drawable-land-hdpi/key_hint_exclamation_large_holo.9.png
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index 5dab2f6..0000000
--- a/java/res/drawable-land-hdpi/key_hint_exclamation_large_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-land-hdpi/key_hint_plus_holo.9.png b/java/res/drawable-land-hdpi/key_hint_plus_holo.9.png
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--- a/java/res/drawable-land-hdpi/key_hint_plus_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-land-hdpi/key_hint_plus_large_holo.9.png b/java/res/drawable-land-hdpi/key_hint_plus_large_holo.9.png
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--- a/java/res/drawable-land-hdpi/key_hint_plus_large_holo.9.png
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diff --git a/java/res/drawable-land-hdpi/key_hint_question_holo.9.png b/java/res/drawable-land-hdpi/key_hint_question_holo.9.png
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--- a/java/res/drawable-land-hdpi/key_hint_question_holo.9.png
+++ /dev/null
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diff --git a/java/res/drawable-land-hdpi/key_hint_question_large_holo.9.png b/java/res/drawable-land-hdpi/key_hint_question_large_holo.9.png
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index 692f4a6..0000000
--- a/java/res/drawable-land-hdpi/key_hint_question_large_holo.9.png
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diff --git a/java/res/drawable-land-hdpi/key_hint_quote_holo.9.png b/java/res/drawable-land-hdpi/key_hint_quote_holo.9.png
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diff --git a/java/res/drawable-land-hdpi/key_hint_quote_large_holo.9.png b/java/res/drawable-land-hdpi/key_hint_quote_large_holo.9.png
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diff --git a/java/res/drawable-land-hdpi/key_hint_underline_holo.9.png b/java/res/drawable-land-hdpi/key_hint_underline_holo.9.png
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diff --git a/java/res/drawable-land-hdpi/key_hint_underline_large_holo.9.png b/java/res/drawable-land-hdpi/key_hint_underline_large_holo.9.png
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diff --git a/java/res/drawable-land-mdpi/key_hint_at_holo.9.png b/java/res/drawable-land-mdpi/key_hint_at_holo.9.png
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--- a/java/res/drawable-land-mdpi/key_hint_at_holo.9.png
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--- a/java/res/drawable-land-mdpi/key_hint_at_large_holo.9.png
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diff --git a/java/res/drawable-land-mdpi/key_hint_colon_holo.9.png b/java/res/drawable-land-mdpi/key_hint_colon_holo.9.png
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--- a/java/res/drawable-land-mdpi/key_hint_colon_large_holo.9.png
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diff --git a/java/res/drawable-land-mdpi/key_hint_comma_holo.9.png b/java/res/drawable-land-mdpi/key_hint_comma_holo.9.png
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index b70f71b..0000000
--- a/java/res/drawable-land-mdpi/key_hint_comma_holo.9.png
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--- a/java/res/drawable-land-mdpi/key_hint_comma_large_holo.9.png
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diff --git a/java/res/drawable-land-mdpi/key_hint_exclamation_holo.9.png b/java/res/drawable-land-mdpi/key_hint_exclamation_holo.9.png
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+++ /dev/null
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diff --git a/java/res/drawable-sw768dp-mdpi/key_hint_exclamation_large_holo.9.png b/java/res/drawable-sw768dp-mdpi/key_hint_exclamation_large_holo.9.png
deleted file mode 100644
index 8dd2f27..0000000
--- a/java/res/drawable-sw768dp-mdpi/key_hint_exclamation_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-sw768dp-mdpi/key_hint_plus_holo.9.png b/java/res/drawable-sw768dp-mdpi/key_hint_plus_holo.9.png
deleted file mode 100644
index 51e86ba..0000000
--- a/java/res/drawable-sw768dp-mdpi/key_hint_plus_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-sw768dp-mdpi/key_hint_plus_large_holo.9.png b/java/res/drawable-sw768dp-mdpi/key_hint_plus_large_holo.9.png
deleted file mode 100644
index bf30f92..0000000
--- a/java/res/drawable-sw768dp-mdpi/key_hint_plus_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-sw768dp-mdpi/key_hint_question_holo.9.png b/java/res/drawable-sw768dp-mdpi/key_hint_question_holo.9.png
deleted file mode 100644
index 38b5d61..0000000
--- a/java/res/drawable-sw768dp-mdpi/key_hint_question_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-sw768dp-mdpi/key_hint_question_large_holo.9.png b/java/res/drawable-sw768dp-mdpi/key_hint_question_large_holo.9.png
deleted file mode 100644
index 448a027..0000000
--- a/java/res/drawable-sw768dp-mdpi/key_hint_question_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-sw768dp-mdpi/key_hint_quote_holo.9.png b/java/res/drawable-sw768dp-mdpi/key_hint_quote_holo.9.png
deleted file mode 100644
index 92fe8ea..0000000
--- a/java/res/drawable-sw768dp-mdpi/key_hint_quote_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-sw768dp-mdpi/key_hint_quote_large_holo.9.png b/java/res/drawable-sw768dp-mdpi/key_hint_quote_large_holo.9.png
deleted file mode 100644
index a777d01..0000000
--- a/java/res/drawable-sw768dp-mdpi/key_hint_quote_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-sw768dp-mdpi/key_hint_underline_holo.9.png b/java/res/drawable-sw768dp-mdpi/key_hint_underline_holo.9.png
deleted file mode 100644
index 7a452c5..0000000
--- a/java/res/drawable-sw768dp-mdpi/key_hint_underline_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-sw768dp-mdpi/key_hint_underline_large_holo.9.png b/java/res/drawable-sw768dp-mdpi/key_hint_underline_large_holo.9.png
deleted file mode 100644
index f738b02..0000000
--- a/java/res/drawable-sw768dp-mdpi/key_hint_underline_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_at_holo.9.png b/java/res/drawable-xhdpi/key_hint_at_holo.9.png
deleted file mode 100644
index 1d257cb..0000000
--- a/java/res/drawable-xhdpi/key_hint_at_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_at_large_holo.9.png b/java/res/drawable-xhdpi/key_hint_at_large_holo.9.png
deleted file mode 100644
index 53de283..0000000
--- a/java/res/drawable-xhdpi/key_hint_at_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_colon_holo.9.png b/java/res/drawable-xhdpi/key_hint_colon_holo.9.png
deleted file mode 100644
index 73394b5..0000000
--- a/java/res/drawable-xhdpi/key_hint_colon_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_colon_large_holo.9.png b/java/res/drawable-xhdpi/key_hint_colon_large_holo.9.png
deleted file mode 100644
index a4a6acb..0000000
--- a/java/res/drawable-xhdpi/key_hint_colon_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_comma_holo.9.png b/java/res/drawable-xhdpi/key_hint_comma_holo.9.png
deleted file mode 100644
index d4dbdf4..0000000
--- a/java/res/drawable-xhdpi/key_hint_comma_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_comma_large_holo.9.png b/java/res/drawable-xhdpi/key_hint_comma_large_holo.9.png
deleted file mode 100644
index aea5c8e..0000000
--- a/java/res/drawable-xhdpi/key_hint_comma_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_exclamation_holo.9.png b/java/res/drawable-xhdpi/key_hint_exclamation_holo.9.png
deleted file mode 100644
index 078d1d8..0000000
--- a/java/res/drawable-xhdpi/key_hint_exclamation_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_exclamation_large_holo.9.png b/java/res/drawable-xhdpi/key_hint_exclamation_large_holo.9.png
deleted file mode 100644
index ddd6b13..0000000
--- a/java/res/drawable-xhdpi/key_hint_exclamation_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_plus_holo.9.png b/java/res/drawable-xhdpi/key_hint_plus_holo.9.png
deleted file mode 100644
index d0ce9c9..0000000
--- a/java/res/drawable-xhdpi/key_hint_plus_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_plus_large_holo.9.png b/java/res/drawable-xhdpi/key_hint_plus_large_holo.9.png
deleted file mode 100644
index 9cf20e8..0000000
--- a/java/res/drawable-xhdpi/key_hint_plus_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_question_holo.9.png b/java/res/drawable-xhdpi/key_hint_question_holo.9.png
deleted file mode 100644
index 1e886d8..0000000
--- a/java/res/drawable-xhdpi/key_hint_question_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_question_large_holo.9.png b/java/res/drawable-xhdpi/key_hint_question_large_holo.9.png
deleted file mode 100644
index 8262287..0000000
--- a/java/res/drawable-xhdpi/key_hint_question_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_quote_holo.9.png b/java/res/drawable-xhdpi/key_hint_quote_holo.9.png
deleted file mode 100644
index fd8bbad..0000000
--- a/java/res/drawable-xhdpi/key_hint_quote_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_quote_large_holo.9.png b/java/res/drawable-xhdpi/key_hint_quote_large_holo.9.png
deleted file mode 100644
index 51d5b49..0000000
--- a/java/res/drawable-xhdpi/key_hint_quote_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_underline_holo.9.png b/java/res/drawable-xhdpi/key_hint_underline_holo.9.png
deleted file mode 100644
index 37d2fa5..0000000
--- a/java/res/drawable-xhdpi/key_hint_underline_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/drawable-xhdpi/key_hint_underline_large_holo.9.png b/java/res/drawable-xhdpi/key_hint_underline_large_holo.9.png
deleted file mode 100644
index 4249a8e..0000000
--- a/java/res/drawable-xhdpi/key_hint_underline_large_holo.9.png
+++ /dev/null
Binary files differ
diff --git a/java/res/values-land/dimens.xml b/java/res/values-land/dimens.xml
index 6b52ad4..7fc1571 100644
--- a/java/res/values-land/dimens.xml
+++ b/java/res/values-land/dimens.xml
@@ -30,7 +30,9 @@
     <dimen name="keyboard_bottom_padding">0.0in</dimen>
     <dimen name="keyboard_horizontal_edges_padding">0.0in</dimen>
     <fraction name="key_letter_ratio">55%</fraction>
-    <fraction name="key_label_text_ratio">35%</fraction>
+    <fraction name="key_label_ratio">35%</fraction>
+    <fraction name="key_hint_letter_ratio">28%</fraction>
+    <fraction name="key_uppercase_letter_ratio">40%</fraction>
     <dimen name="key_preview_offset">0.08in</dimen>
     <fraction name="key_preview_text_ratio">90%</fraction>
     <dimen name="candidate_strip_height">38dip</dimen>
diff --git a/java/res/values-sw600dp-land/dimens.xml b/java/res/values-sw600dp-land/dimens.xml
index 618b7f4..beb5263 100644
--- a/java/res/values-sw600dp-land/dimens.xml
+++ b/java/res/values-sw600dp-land/dimens.xml
@@ -31,8 +31,10 @@
     <!-- key_height x 1.0 -->
     <dimen name="key_preview_height">13.0mm</dimen>
 
-    <dimen name="key_letter_size">25dip</dimen>
-    <dimen name="key_label_text_size">18dip</dimen>
+    <fraction name="key_letter_ratio">30.7%</fraction>
+    <fraction name="key_label_ratio">21.9%</fraction>
+    <fraction name="key_hint_letter_ratio">23%</fraction>
+    <fraction name="key_uppercase_letter_ratio">25%</fraction>
     <!-- left or right padding of label alignment -->
     <dimen name="key_label_horizontal_alignment_padding">18dip</dimen>
     <dimen name="candidate_strip_padding">40.0mm</dimen>
diff --git a/java/res/values-sw600dp/dimens.xml b/java/res/values-sw600dp/dimens.xml
index 7cdf727..62ab0d2 100644
--- a/java/res/values-sw600dp/dimens.xml
+++ b/java/res/values-sw600dp/dimens.xml
@@ -40,7 +40,9 @@
     <dimen name="mini_keyboard_vertical_correction">-13.0mm</dimen>
 
     <fraction name="key_letter_ratio">45%</fraction>
-    <fraction name="key_label_text_ratio">29%</fraction>
+    <fraction name="key_label_ratio">29%</fraction>
+    <fraction name="key_hint_letter_ratio">23%</fraction>
+    <fraction name="key_uppercase_letter_ratio">35%</fraction>
     <fraction name="key_preview_text_ratio">82%</fraction>
     <!-- left or right padding of label alignment -->
     <dimen name="key_label_horizontal_alignment_padding">6dip</dimen>
diff --git a/java/res/values-sw768dp-land/dimens.xml b/java/res/values-sw768dp-land/dimens.xml
index ce36145..81d91ce 100644
--- a/java/res/values-sw768dp-land/dimens.xml
+++ b/java/res/values-sw768dp-land/dimens.xml
@@ -32,7 +32,9 @@
     <dimen name="keyboard_horizontal_edges_padding">0.0mm</dimen>
 
     <fraction name="key_letter_ratio">30.7%</fraction>
-    <fraction name="key_label_text_ratio">21.9%</fraction>
+    <fraction name="key_label_ratio">21.9%</fraction>
+    <fraction name="key_hint_letter_ratio">23%</fraction>
+    <fraction name="key_uppercase_letter_ratio">25%</fraction>
     <!-- left or right padding of label alignment -->
     <dimen name="key_label_horizontal_alignment_padding">18dip</dimen>
     <dimen name="key_preview_height_holo">26.5mm</dimen>
diff --git a/java/res/values-sw768dp/dimens.xml b/java/res/values-sw768dp/dimens.xml
index cb380fb..74eab5f 100644
--- a/java/res/values-sw768dp/dimens.xml
+++ b/java/res/values-sw768dp/dimens.xml
@@ -39,7 +39,9 @@
     <dimen name="mini_keyboard_vertical_correction">-13.0mm</dimen>
 
     <fraction name="key_letter_ratio">34.4%</fraction>
-    <fraction name="key_label_text_ratio">21.2%</fraction>
+    <fraction name="key_label_ratio">21.2%</fraction>
+    <fraction name="key_hint_letter_ratio">23%</fraction>
+    <fraction name="key_uppercase_letter_ratio">28%</fraction>
     <!-- left or right padding of label alignment -->
     <dimen name="key_label_horizontal_alignment_padding">6dip</dimen>
     <fraction name="key_preview_text_ratio">26.3%</fraction>
diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index 3bed880..2db529e 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -39,19 +39,27 @@
              checkable+checked+pressed. -->
         <attr name="keyBackground" format="reference" />
 
-        <!-- Size of the text for one letter character keys, in the proportion of key height.
-             -->
+        <!-- Size of the text for one letter keys, in the proportion of key height. -->
         <attr name="keyLetterRatio" format="float" />
-
-        <!-- Size of the text for custom keys with some text and no icon, in the proportion of key
-             height. -->
-        <attr name="labelTextRatio" format="float" />
+        <!-- Size of the text for keys with some text, in the proportion of key height. -->
+        <attr name="keyLabelRatio" format="float" />
+        <!-- Size of the text for hint letter, in the proportion of key height. -->
+        <attr name="keyHintLetterRatio" format="float" />
+        <!-- Size of the text for upper case letter, in the proportion of key height. -->
+        <attr name="keyUppercaseLetterRatio" format="float" />
 
         <!-- Color to use for the label in a key. -->
         <attr name="keyTextColor" format="color" />
+        <!-- Color to use for the label in a key when in inactivated state. -->
+        <attr name="keyTextInactivatedColor" format="color" />
+        <!-- Key hint letter color -->
+        <attr name="keyHintLetterColor" format="color" />
+        <!-- Upper case letter colors -->
+        <attr name="keyUppercaseLetterInactivatedColor" format="color" />
+        <attr name="keyUppercaseLetterActivatedColor" format="color" />
 
-        <!-- Color to use for the label in a key when in disabled state. -->
-        <attr name="keyTextColorDisabled" format="color" />
+        <!-- Popup hint icon "..." -->
+        <attr name="keyPopupHintIcon" format="reference" />
 
         <!-- Layout resource for key press feedback.-->
         <attr name="keyPreviewLayout" format="reference" />
@@ -75,7 +83,7 @@
         <attr name="shadowRadius" format="float" />
         <attr name="backgroundDimAmount" format="float" />
 
-        <attr name="keyLetterStyle" format="enum">
+        <attr name="keyTextStyle" format="enum">
             <!-- This should be aligned with Typeface.NORMAL etc. -->
             <enum name="normal" value="0" />
             <enum name="bold" value="1" />
@@ -131,8 +139,6 @@
         <attr name="verticalGap" format="dimension|fraction" />
         <!-- Popup keyboard layout template -->
         <attr name="popupKeyboardTemplate" format="reference" />
-        <!-- Popup hint icon -->
-        <attr name="popupHintIcon" format="reference" />
         <!-- Locale of the keyboard layout -->
         <attr name="keyboardLocale" format="string" />
     </declare-styleable>
@@ -163,24 +169,20 @@
         <attr name="keyOutputText" format="string" />
         <!-- The label to display on the key. -->
         <attr name="keyLabel" format="string" />
-        <!-- The key label option -->
+        <!-- The hint letter to display on the key in conjunction with the label. -->
+        <attr name="keyHintLetter" format="string" />
+        <!-- The key label option. -->
         <attr name="keyLabelOption" format="integer">
-            <!-- This should be aligned with KeyboardView.KEY_LABEL_OPTION_* -->
+            <!-- This should be aligned with Key.LABEL_OPTION_* -->
             <flag name="alignLeft" value="0x01" />
             <flag name="alignRight" value="0x02" />
             <flag name="alignBottom" value="0x08" />
             <flag name="fontNormal" value="0x10" />
             <flag name="popupHint" value="0x20" />
+            <flag name="hasUppercaseLetter" value="0x40" />
         </attr>
-        <!-- The unicode that this key generates in manual temporary upper case mode. -->
-        <attr name="manualTemporaryUpperCaseCode" format="integer" />
         <!-- The icon to display on the key instead of the label. -->
         <attr name="keyIcon" format="reference" />
-        <!-- The hint icon to display on the key in conjunction with the label -->
-        <attr name="keyHintIcon" format="reference" />
-        <!-- The hint icon to display on the key when keyboard is in manual temporary upper case
-             mode. -->
-        <attr name="manualTemporaryUpperCaseHintIcon" format="reference" />
         <!-- The key style to specify a set of key attributes defined by <key_style/> -->
         <attr name="keyStyle" format="string" />
         <!-- Shift key icon for shifted state -->
diff --git a/java/res/values/dimens.xml b/java/res/values/dimens.xml
index e26cad3..a76c78a 100644
--- a/java/res/values/dimens.xml
+++ b/java/res/values/dimens.xml
@@ -44,7 +44,9 @@
     <dimen name="keyboard_vertical_correction">-0.05in</dimen>
 
     <fraction name="key_letter_ratio">45%</fraction>
-    <fraction name="key_label_text_ratio">29%</fraction>
+    <fraction name="key_label_ratio">29%</fraction>
+    <fraction name="key_hint_letter_ratio">23%</fraction>
+    <fraction name="key_uppercase_letter_ratio">35%</fraction>
     <!-- left or right padding of label alignment -->
     <dimen name="key_label_horizontal_alignment_padding">21dip</dimen>
     <dimen name="key_preview_height">80sp</dimen>
diff --git a/java/res/values/styles.xml b/java/res/values/styles.xml
index 37f1fe3..6f973d9 100644
--- a/java/res/values/styles.xml
+++ b/java/res/values/styles.xml
@@ -17,7 +17,6 @@
 <resources>
     <!-- Theme "Basic" -->
     <style name="Keyboard">
-        <item name="popupHintIcon">@drawable/hint_popup</item>
     </style>
     <style name="LatinKeyboard">
         <item name="autoCorrectionSpacebarLedIcon">@drawable/sym_keyboard_space_led</item>
@@ -33,13 +32,19 @@
         <item name="android:background">@drawable/keyboard_background</item>
         <item name="keyBackground">@drawable/btn_keyboard_key</item>
         <item name="keyLetterRatio">@fraction/key_letter_ratio</item>
-        <item name="keyLetterStyle">normal</item>
+        <item name="keyLabelRatio">@fraction/key_label_ratio</item>
+        <item name="keyHintLetterRatio">@fraction/key_hint_letter_ratio</item>
+        <item name="keyUppercaseLetterRatio">@fraction/key_uppercase_letter_ratio</item>
+        <item name="keyTextStyle">normal</item>
         <item name="keyTextColor">#FFFFFFFF</item>
-        <item name="keyTextColorDisabled">#FFFFFFFF</item>
+        <item name="keyTextInactivatedColor">#FFFFFFFF</item>
+        <item name="keyHintLetterColor">#80000000</item>
+        <item name="keyUppercaseLetterInactivatedColor">#66E0E4E5</item>
+        <item name="keyUppercaseLetterActivatedColor">#CCE0E4E5</item>
+        <item name="keyPopupHintIcon">@drawable/hint_popup</item>
         <item name="keyPreviewLayout">@layout/key_preview</item>
         <item name="keyPreviewOffset">@dimen/key_preview_offset</item>
         <item name="keyPreviewHeight">@dimen/key_preview_height</item>
-        <item name="labelTextRatio">@fraction/key_label_text_ratio</item>
         <item name="popupLayout">@layout/keyboard_popup</item>
         <item name="keyHysteresisDistance">@dimen/key_hysteresis_distance</item>
         <item name="verticalCorrection">@dimen/keyboard_vertical_correction</item>
@@ -91,7 +96,7 @@
     <style name="KeyboardView.Stone" parent="KeyboardView">
         <item name="keyBackground">@drawable/btn_keyboard_key_stone</item>
         <item name="keyTextColor">@color/latinkeyboard_key_color_black</item>
-        <item name="keyTextColorDisabled">#FF808080</item>
+        <item name="keyTextInactivatedColor">#FF808080</item>
         <item name="shadowColor">@color/latinkeyboard_key_color_white</item>
         <item name="colorScheme">black</item>
     </style>
@@ -102,20 +107,19 @@
     </style>
     <!-- Theme "Stone bold" -->
     <style name="KeyboardView.Stone.Bold" parent="KeyboardView.Stone">
-        <item name="keyLetterStyle">bold</item>
+        <item name="keyTextStyle">bold</item>
     </style>
     <!-- Theme "Gingerbread" -->
     <style name="KeyboardView.Gingerbread" parent="KeyboardView">
         <item name="android:background">@drawable/keyboard_dark_background</item>
         <item name="keyBackground">@drawable/btn_keyboard_key_gingerbread</item>
-        <item name="keyLetterStyle">bold</item>
+        <item name="keyTextStyle">bold</item>
     </style>
     <style name="PopupMiniKeyboardView.Gingerbread" parent="PopupMiniKeyboardView">
         <item name="android:background">@null</item>
     </style>
     <!-- Theme "Honeycomb" -->
     <style name="Keyboard.Honeycomb" parent="Keyboard" >
-        <item name="popupHintIcon">@drawable/hint_popup_holo</item>
     </style>
     <style name="LatinKeyboard.Honeycomb" parent="LatinKeyboard">
         <item name="autoCorrectionSpacebarLedIcon">@null</item>
@@ -124,10 +128,14 @@
     <style name="KeyboardView.Honeycomb" parent="KeyboardView">
         <item name="android:background">@drawable/keyboard_background_holo</item>
         <item name="keyBackground">@drawable/btn_keyboard_key_honeycomb</item>
+        <item name="keyTextStyle">bold</item>
+        <item name="keyTextInactivatedColor">#66E0E4E5</item>
+        <item name="keyHintLetterColor">#80000000</item>
+        <item name="keyUppercaseLetterInactivatedColor">#66E0E4E5</item>
+        <item name="keyUppercaseLetterActivatedColor">#FFFFFFFF</item>
+        <item name="keyPopupHintIcon">@drawable/hint_popup_holo</item>
         <item name="keyPreviewHeight">@dimen/key_preview_height_holo</item>
         <item name="keyPreviewOffset">@dimen/key_preview_offset_holo</item>
-        <item name="keyTextColorDisabled">#FF63666D</item>
-        <item name="keyLetterStyle">bold</item>
         <item name="shadowColor">#00000000</item>
         <item name="shadowRadius">0.0</item>
     </style>
diff --git a/java/res/xml-sw600dp/kbd_azerty_rows.xml b/java/res/xml-sw600dp/kbd_azerty_rows.xml
index 99c56e4..269c6ef 100644
--- a/java/res/xml-sw600dp/kbd_azerty_rows.xml
+++ b/java/res/xml-sw600dp/kbd_azerty_rows.xml
@@ -137,15 +137,13 @@
             <default>
                 <Key
                     latin:keyLabel=","
-                    latin:manualTemporaryUpperCaseCode="33"
-                    latin:keyHintIcon="@drawable/key_hint_exclamation_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_exclamation_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="!"
                     latin:popupCharacters="!" />
                 <Key
                     latin:keyLabel="."
-                    latin:manualTemporaryUpperCaseCode="63"
-                    latin:keyHintIcon="@drawable/key_hint_question_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_question_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="\?"
                     latin:popupCharacters="\?" />
             </default>
         </switch>
diff --git a/java/res/xml-sw600dp/kbd_phone.xml b/java/res/xml-sw600dp/kbd_phone.xml
index b20bb24..cf0e523 100644
--- a/java/res/xml-sw600dp/kbd_phone.xml
+++ b/java/res/xml-sw600dp/kbd_phone.xml
@@ -36,13 +36,11 @@
     <!-- This row is intentionally not marked as a top row -->
     <Row>
         <Key
-            latin:code="45"
-            latin:keyLabel=" - "
+            latin:keyLabel="-"
             latin:keyXPos="15.625%p"
             latin:keyWidth="9.25%p" />
         <Key
-            latin:code="43"
-            latin:keyLabel=" + "
+            latin:keyLabel="+"
             latin:keyWidth="9.25%p" />
         <Key
             latin:keyStyle="num1KeyStyle"
@@ -59,13 +57,11 @@
     </Row>
     <Row>
         <Key
-            latin:code="44"
-            latin:keyLabel=" , "
+            latin:keyLabel=","
             latin:keyXPos="15.625%p"
             latin:keyWidth="9.25%p" />
         <Key
-            latin:code="46"
-            latin:keyLabel=" . "
+            latin:keyLabel="."
             latin:keyWidth="9.25%p" />
         <Key
             latin:keyStyle="num4KeyStyle"
@@ -88,13 +84,11 @@
         <!-- There is an empty area below the "More" key and left of the "(" key.  To ignore
              the touch event on the area, "(" is intentionally not marked as a left edge key. -->
         <Key
-            latin:code="40"
-            latin:keyLabel=" ( "
+            latin:keyLabel="("
             latin:keyXPos="15.625%p"
             latin:keyWidth="9.25%p" />
         <Key
-            latin:code="41"
-            latin:keyLabel=" ) "
+            latin:keyLabel=")"
             latin:keyWidth="9.25%p" />
         <Key
             latin:keyStyle="num7KeyStyle"
diff --git a/java/res/xml-sw600dp/kbd_phone_symbols.xml b/java/res/xml-sw600dp/kbd_phone_symbols.xml
index 7f62673..3565285 100644
--- a/java/res/xml-sw600dp/kbd_phone_symbols.xml
+++ b/java/res/xml-sw600dp/kbd_phone_symbols.xml
@@ -36,13 +36,11 @@
     <!-- This row is intentionally not marked as a top row -->
     <Row>
         <Key
-            latin:code="45"
-            latin:keyLabel=" - "
+            latin:keyLabel="-"
             latin:keyXPos="11.00%p"
             latin:keyWidth="9.25%p" />
         <Key
-            latin:code="43"
-            latin:keyLabel=" + "
+            latin:keyLabel="+"
             latin:keyWidth="9.25%p" />
         <Key
             latin:code="44"
@@ -63,13 +61,11 @@
     </Row>
     <Row>
         <Key
-            latin:code="44"
-            latin:keyLabel=" , "
+            latin:keyLabel=","
             latin:keyXPos="11.00%p"
             latin:keyWidth="9.25%p" />
         <Key
-            latin:code="46"
-            latin:keyLabel=" . "
+            latin:keyLabel="."
             latin:keyWidth="9.25%p" />
         <Key
             latin:code="59"
@@ -96,16 +92,13 @@
         <!-- There is an empty area below the "More" key and left of the "(" key.  To ignore
              the touch event on the area, "(" is intentionally not marked as a left edge key. -->
         <Key
-            latin:code="40"
-            latin:keyLabel=" ( "
+            latin:keyLabel="("
             latin:keyWidth="9.25%p" />
         <Key
-            latin:code="41"
-            latin:keyLabel=" ) "
+            latin:keyLabel=")"
             latin:keyWidth="9.25%p" />
         <Key
-            latin:code="78"
-            latin:keyLabel=" N "
+            latin:keyLabel="N"
             latin:keyWidth="9.25%p" />
         <Key
             latin:keyStyle="num7KeyStyle"
diff --git a/java/res/xml-sw600dp/kbd_qwerty_row3.xml b/java/res/xml-sw600dp/kbd_qwerty_row3.xml
index 4118ee1..0dbc5cf 100644
--- a/java/res/xml-sw600dp/kbd_qwerty_row3.xml
+++ b/java/res/xml-sw600dp/kbd_qwerty_row3.xml
@@ -58,15 +58,13 @@
             <default>
                 <Key
                     latin:keyLabel=","
-                    latin:manualTemporaryUpperCaseCode="33"
-                    latin:keyHintIcon="@drawable/key_hint_exclamation_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_exclamation_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="!"
                     latin:popupCharacters="!" />
                 <Key
                     latin:keyLabel="."
-                    latin:manualTemporaryUpperCaseCode="63"
-                    latin:keyHintIcon="@drawable/key_hint_question_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_question_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="\?"
                     latin:popupCharacters="\?" />
             </default>
         </switch>
diff --git a/java/res/xml-sw600dp/kbd_qwerty_row4.xml b/java/res/xml-sw600dp/kbd_qwerty_row4.xml
index 3e5492e..49e377f 100644
--- a/java/res/xml-sw600dp/kbd_qwerty_row4.xml
+++ b/java/res/xml-sw600dp/kbd_qwerty_row4.xml
@@ -48,9 +48,8 @@
             <default>
                 <Key
                     latin:keyLabel="/"
-                    latin:manualTemporaryUpperCaseCode="64"
-                    latin:keyHintIcon="@drawable/key_hint_at_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_at_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="\@"
                     latin:popupCharacters="\@" />
             </default>
         </switch>
@@ -75,18 +74,16 @@
                     >
                         <Key
                             latin:keyLabel="/"
-                            latin:manualTemporaryUpperCaseCode="58"
-                            latin:keyHintIcon="@drawable/key_hint_colon_holo"
-                            latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_colon_large_holo"
+                            latin:keyLabelOption="hasUppercaseLetter"
+                            latin:keyHintLetter=":"
                             latin:popupCharacters=":"
                             latin:keyWidth="9.750%p" />
                     </case>
                     <default>
                         <Key
                             latin:keyLabel="\?"
-                            latin:manualTemporaryUpperCaseCode="95"
-                            latin:keyHintIcon="@drawable/key_hint_underline_holo"
-                            latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_underline_large_holo"
+                            latin:keyLabelOption="hasUppercaseLetter"
+                            latin:keyHintLetter="_"
                             latin:popupCharacters="_"
                             latin:keyWidth="9.750%p" />
                     </default>
@@ -102,9 +99,8 @@
                     <default>
                         <Key
                             latin:keyLabel="!"
-                            latin:manualTemporaryUpperCaseCode="39"
-                            latin:keyHintIcon="@drawable/key_hint_quote_holo"
-                            latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_quote_large_holo"
+                            latin:keyLabelOption="hasUppercaseLetter"
+                            latin:keyHintLetter="\'"
                             latin:popupCharacters="\'"
                             latin:keyWidth="9.750%p" />
                     </default>
@@ -125,18 +121,16 @@
                     >
                         <Key
                             latin:keyLabel="/"
-                            latin:manualTemporaryUpperCaseCode="58"
-                            latin:keyHintIcon="@drawable/key_hint_colon_holo"
-                            latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_colon_large_holo"
+                            latin:keyLabelOption="hasUppercaseLetter"
+                            latin:keyHintLetter=":"
                             latin:popupCharacters=":"
                             latin:keyWidth="9.750%p" />
                     </case>
                     <default>
                         <Key
                             latin:keyLabel="\'"
-                            latin:manualTemporaryUpperCaseCode="34"
-                            latin:keyHintIcon="@drawable/key_hint_quote_holo"
-                            latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_quote_large_holo"
+                            latin:keyLabelOption="hasUppercaseLetter"
+                            latin:keyHintLetter="&quot;"
                             latin:popupCharacters="&quot;"
                             latin:keyWidth="9.750%p" />
                     </default>
@@ -152,9 +146,8 @@
                     <default>
                         <Key
                             latin:keyLabel="-"
-                            latin:manualTemporaryUpperCaseCode="95"
-                            latin:keyHintIcon="@drawable/key_hint_underline_holo"
-                            latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_underline_large_holo"
+                            latin:keyLabelOption="hasUppercaseLetter"
+                            latin:keyHintLetter="_"
                             latin:popupCharacters="_"
                             latin:keyWidth="9.750%p" />
                     </default>
diff --git a/java/res/xml-sw600dp/kbd_qwertz_rows.xml b/java/res/xml-sw600dp/kbd_qwertz_rows.xml
index 9e717c8..7ea9b0f 100644
--- a/java/res/xml-sw600dp/kbd_qwertz_rows.xml
+++ b/java/res/xml-sw600dp/kbd_qwertz_rows.xml
@@ -103,15 +103,13 @@
             <default>
                 <Key
                     latin:keyLabel=","
-                    latin:manualTemporaryUpperCaseCode="33"
-                    latin:keyHintIcon="@drawable/key_hint_exclamation_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_exclamation_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="!"
                     latin:popupCharacters="!" />
                 <Key
                     latin:keyLabel="."
-                    latin:manualTemporaryUpperCaseCode="63"
-                    latin:keyHintIcon="@drawable/key_hint_question_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_question_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="\?"
                     latin:popupCharacters="\?" />
             </default>
         </switch>
diff --git a/java/res/xml-sw600dp/kbd_row3_right.xml b/java/res/xml-sw600dp/kbd_row3_right.xml
index 6f7d40b..a9c5eb3 100644
--- a/java/res/xml-sw600dp/kbd_row3_right.xml
+++ b/java/res/xml-sw600dp/kbd_row3_right.xml
@@ -36,9 +36,8 @@
         >
             <Key
                 latin:keyLabel="-"
-                latin:manualTemporaryUpperCaseCode="95"
-                latin:keyHintIcon="@drawable/key_hint_underline_holo"
-                latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_underline_large_holo"
+                latin:keyLabelOption="hasUppercaseLetter"
+                latin:keyHintLetter="_"
                 latin:popupCharacters="_"
                 latin:keyXPos="-8.9%p"
                 latin:keyWidth="fillBoth"
@@ -49,9 +48,8 @@
         >
             <Key
                 latin:keyLabel=":"
-                latin:manualTemporaryUpperCaseCode="43"
-                latin:keyHintIcon="@drawable/key_hint_plus_holo"
-                latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_plus_large_holo"
+                latin:keyLabelOption="hasUppercaseLetter"
+                latin:keyHintLetter="+"
                 latin:popupCharacters="+"
                 latin:keyXPos="-8.9%p"
                 latin:keyWidth="fillBoth"
diff --git a/java/res/xml-sw600dp/kbd_ru_rows.xml b/java/res/xml-sw600dp/kbd_ru_rows.xml
index 714d1a8..43fa665 100644
--- a/java/res/xml-sw600dp/kbd_ru_rows.xml
+++ b/java/res/xml-sw600dp/kbd_ru_rows.xml
@@ -118,9 +118,8 @@
             latin:keyLabel="ю" />
         <Key
             latin:keyLabel="."
-            latin:manualTemporaryUpperCaseCode="44"
-            latin:keyHintIcon="@drawable/key_hint_comma_holo"
-            latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_comma_large_holo"
+            latin:keyLabelOption="hasUppercaseLetter"
+            latin:keyHintLetter=","
             latin:popupCharacters="," />
         <include
             latin:keyboardLayout="@xml/kbd_row3_right" />
diff --git a/java/res/xml-sw600dp/kbd_sr_rows.xml b/java/res/xml-sw600dp/kbd_sr_rows.xml
index 62c3b71..80debda 100644
--- a/java/res/xml-sw600dp/kbd_sr_rows.xml
+++ b/java/res/xml-sw600dp/kbd_sr_rows.xml
@@ -126,15 +126,13 @@
             <default>
                 <Key
                     latin:keyLabel=","
-                    latin:manualTemporaryUpperCaseCode="33"
-                    latin:keyHintIcon="@drawable/key_hint_exclamation_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_exclamation_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="!"
                     latin:popupCharacters="!" />
                 <Key
                     latin:keyLabel="."
-                    latin:manualTemporaryUpperCaseCode="63"
-                    latin:keyHintIcon="@drawable/key_hint_question_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_question_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="\?"
                     latin:popupCharacters="\?" />
             </default>
         </switch>
diff --git a/java/res/xml-sw768dp/kbd_azerty_rows.xml b/java/res/xml-sw768dp/kbd_azerty_rows.xml
index 5288ccf..3bcba00 100644
--- a/java/res/xml-sw768dp/kbd_azerty_rows.xml
+++ b/java/res/xml-sw768dp/kbd_azerty_rows.xml
@@ -133,9 +133,8 @@
             latin:popupCharacters="@string/alternates_for_n" />
         <Key
             latin:keyLabel="\'"
-            latin:manualTemporaryUpperCaseCode="58"
-            latin:keyHintIcon="@drawable/key_hint_colon_holo"
-            latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_colon_large_holo"
+            latin:keyLabelOption="hasUppercaseLetter"
+            latin:keyHintLetter=":"
             latin:popupCharacters=":" />
         <switch>
             <case
@@ -149,15 +148,13 @@
             <default>
                 <Key
                     latin:keyLabel=","
-                    latin:manualTemporaryUpperCaseCode="33"
-                    latin:keyHintIcon="@drawable/key_hint_exclamation_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_exclamation_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="!"
                     latin:popupCharacters="!" />
                 <Key
                     latin:keyLabel="."
-                    latin:manualTemporaryUpperCaseCode="63"
-                    latin:keyHintIcon="@drawable/key_hint_question_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_question_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="\?"
                     latin:popupCharacters="\?" />
             </default>
         </switch>
diff --git a/java/res/xml-sw768dp/kbd_phone.xml b/java/res/xml-sw768dp/kbd_phone.xml
index 51627aa..0c65233 100644
--- a/java/res/xml-sw768dp/kbd_phone.xml
+++ b/java/res/xml-sw768dp/kbd_phone.xml
@@ -41,16 +41,12 @@
             latin:keyLabelOption="alignLeft"
             latin:keyWidth="11.172%p"
             latin:keyEdgeFlags="left" />
-        <!-- To match one character label size with "Tab", I placed spaces around the char '-'
-             and '+'. -->
         <Key
-            latin:code="45"
-            latin:keyLabel=" - "
+            latin:keyLabel="-"
             latin:keyXPos="20.400%p"
             latin:keyWidth="8.047%p" />
         <Key
-            latin:code="43"
-            latin:keyLabel=" + "
+            latin:keyLabel="+"
             latin:keyWidth="8.047%p" />
         <Key
             latin:keyStyle="num1KeyStyle"
@@ -70,16 +66,12 @@
             latin:keyStyle="moreKeyStyle"
             latin:keyWidth="11.172%p"
             latin:keyEdgeFlags="left" />
-        <!-- To match one character label size with "More", I placed spaces around the char ','
-             and '.'. -->
         <Key
-            latin:code="44"
-            latin:keyLabel=" , "
+            latin:keyLabel=","
             latin:keyXPos="20.400%p"
             latin:keyWidth="8.047%p" />
         <Key
-            latin:code="46"
-            latin:keyLabel=" . "
+            latin:keyLabel="."
             latin:keyWidth="8.047%p" />
         <Key
             latin:keyStyle="num4KeyStyle"
@@ -95,18 +87,14 @@
             latin:keyEdgeFlags="right" />
     </Row>
     <Row>
-        <!-- To match one character label size with "More", I placed spaces around the char '('
-             and ')'. -->
         <!-- There is an empty area below the "More" key and left of the "(" key.  To ignore
              the touch event on the area, "(" is intentionally not marked as a left edge key. -->
         <Key
-            latin:code="40"
-            latin:keyLabel=" ( "
+            latin:keyLabel="("
             latin:keyXPos="20.400%p"
             latin:keyWidth="8.047%p" />
         <Key
-            latin:code="41"
-            latin:keyLabel=" ) "
+            latin:keyLabel=")"
             latin:keyWidth="8.047%p" />
         <Key
             latin:keyStyle="num7KeyStyle"
diff --git a/java/res/xml-sw768dp/kbd_phone_symbols.xml b/java/res/xml-sw768dp/kbd_phone_symbols.xml
index b086b41..da2ac65 100644
--- a/java/res/xml-sw768dp/kbd_phone_symbols.xml
+++ b/java/res/xml-sw768dp/kbd_phone_symbols.xml
@@ -42,20 +42,16 @@
             latin:keyWidth="11.172%p"
             latin:keyEdgeFlags="left" />
         <Key
-            latin:code="45"
-            latin:keyLabel=" - "
+            latin:keyLabel="-"
             latin:keyXPos="13.829%p"
             latin:keyWidth="8.047%p" />
         <Key
-            latin:code="43"
-            latin:keyLabel=" + "
+            latin:keyLabel="+"
             latin:keyWidth="8.047%p" />
         <Key
             latin:code="44"
             latin:keyLabel="@string/label_pause_key"
             latin:keyWidth="8.047%p" />
-        <!-- To match one character label size with "Tab" and "Pause, I placed spaces around the
-             char '-' and '+'. -->
         <Key
             latin:keyStyle="num1KeyStyle"
             latin:keyXPos="43.125%p" />
@@ -75,20 +71,16 @@
             latin:keyWidth="11.172%p"
             latin:keyEdgeFlags="left" />
         <Key
-            latin:code="44"
-            latin:keyLabel=" , "
+            latin:keyLabel=","
             latin:keyXPos="13.829%p"
             latin:keyWidth="8.047%p" />
         <Key
-            latin:code="46"
-            latin:keyLabel=" . "
+            latin:keyLabel="."
             latin:keyWidth="8.047%p" />
         <Key
             latin:code="59"
             latin:keyLabel="@string/label_wait_key"
             latin:keyWidth="8.047%p" />
-        <!-- To match one character label size with "More" and "Wait", I placed spaces around the
-             char ',' and '.'. -->
         <Key
             latin:keyStyle="num4KeyStyle"
             latin:keyXPos="43.125%p" />
@@ -103,22 +95,17 @@
             latin:keyEdgeFlags="right" />
     </Row>
     <Row>
-        <!-- To match one character label size with "More" and etc., I placed spaces around the
-             char 'N', '(' and ')'. -->
         <!-- There is an empty area below the "More" key and left of the "(" key.  To ignore
              the touch event on the area, "(" is intentionally not marked as a left edge key. -->
         <Key
-            latin:code="40"
-            latin:keyLabel=" ( "
+            latin:keyLabel="("
             latin:keyXPos="13.829%p"
             latin:keyWidth="8.047%p" />
         <Key
-            latin:code="41"
-            latin:keyLabel=" ) "
+            latin:keyLabel=")"
             latin:keyWidth="8.047%p" />
         <Key
-            latin:code="78"
-            latin:keyLabel=" N "
+            latin:keyLabel="N"
             latin:keyWidth="8.047%p" />
         <Key
             latin:keyStyle="num7KeyStyle"
diff --git a/java/res/xml-sw768dp/kbd_qwerty_row4.xml b/java/res/xml-sw768dp/kbd_qwerty_row4.xml
index 0e71cbf..fba2a65 100644
--- a/java/res/xml-sw768dp/kbd_qwerty_row4.xml
+++ b/java/res/xml-sw768dp/kbd_qwerty_row4.xml
@@ -58,9 +58,8 @@
                     >
                         <Key
                             latin:keyLabel=":"
-                            latin:manualTemporaryUpperCaseCode="43"
-                            latin:keyHintIcon="@drawable/key_hint_plus_holo"
-                            latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_plus_large_holo"
+                            latin:keyLabelOption="hasUppercaseLetter"
+                            latin:keyHintLetter="+"
                             latin:popupCharacters="+" />
                     </case>
                     <default>
@@ -78,9 +77,8 @@
                     <default>
                         <Key
                             latin:keyLabel="/"
-                            latin:manualTemporaryUpperCaseCode="64"
-                            latin:keyHintIcon="@drawable/key_hint_at_holo"
-                            latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_at_large_holo"
+                            latin:keyLabelOption="hasUppercaseLetter"
+                            latin:keyHintLetter="\@"
                             latin:popupCharacters="\@" />
                     </default>
                 </switch>
@@ -102,17 +100,15 @@
             >
                 <Key
                     latin:keyLabel="/"
-                    latin:manualTemporaryUpperCaseCode="58"
-                    latin:keyHintIcon="@drawable/key_hint_colon_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_colon_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter=":"
                     latin:popupCharacters=":" />
             </case>
             <default>
                 <Key
                     latin:keyLabel="\'"
-                    latin:manualTemporaryUpperCaseCode="34"
-                    latin:keyHintIcon="@drawable/key_hint_quote_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_quote_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="&quot;"
                     latin:popupCharacters="&quot;" />
             </default>
         </switch>
@@ -126,9 +122,8 @@
             <default>
                 <Key
                     latin:keyLabel="-"
-                    latin:manualTemporaryUpperCaseCode="95"
-                    latin:keyHintIcon="@drawable/key_hint_underline_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_underline_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="_"
                     latin:popupCharacters="_" />
             </default>
         </switch>
diff --git a/java/res/xml-sw768dp/kbd_qwertz_rows.xml b/java/res/xml-sw768dp/kbd_qwertz_rows.xml
index 4e937ac..8d5f1e6 100644
--- a/java/res/xml-sw768dp/kbd_qwertz_rows.xml
+++ b/java/res/xml-sw768dp/kbd_qwertz_rows.xml
@@ -106,15 +106,13 @@
             <default>
                 <Key
                     latin:keyLabel=","
-                    latin:manualTemporaryUpperCaseCode="33"
-                    latin:keyHintIcon="@drawable/key_hint_exclamation_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_exclamation_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="!"
                     latin:popupCharacters="!" />
                 <Key
                     latin:keyLabel="."
-                    latin:manualTemporaryUpperCaseCode="63"
-                    latin:keyHintIcon="@drawable/key_hint_question_holo"
-                    latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_question_large_holo"
+                    latin:keyLabelOption="hasUppercaseLetter"
+                    latin:keyHintLetter="\?"
                     latin:popupCharacters="\?" />
             </default>
         </switch>
diff --git a/java/res/xml-sw768dp/kbd_row3_right2.xml b/java/res/xml-sw768dp/kbd_row3_right2.xml
index 1759ea1..e90de8e 100644
--- a/java/res/xml-sw768dp/kbd_row3_right2.xml
+++ b/java/res/xml-sw768dp/kbd_row3_right2.xml
@@ -33,15 +33,13 @@
         <default>
             <Key
                 latin:keyLabel=","
-                latin:manualTemporaryUpperCaseCode="33"
-                latin:keyHintIcon="@drawable/key_hint_exclamation_holo"
-                latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_exclamation_large_holo"
+                latin:keyLabelOption="hasUppercaseLetter"
+                latin:keyHintLetter="!"
                 latin:popupCharacters="!" />
             <Key
                 latin:keyLabel="."
-                latin:manualTemporaryUpperCaseCode="63"
-                latin:keyHintIcon="@drawable/key_hint_question_holo"
-                latin:manualTemporaryUpperCaseHintIcon="@drawable/key_hint_question_large_holo"
+                latin:keyLabelOption="hasUppercaseLetter"
+                latin:keyHintLetter="\?"
                 latin:popupCharacters="\?" />
         </default>
     </switch>
diff --git a/java/res/xml/kbd_azerty_rows.xml b/java/res/xml/kbd_azerty_rows.xml
index 9c81aad..9825c4a 100644
--- a/java/res/xml/kbd_azerty_rows.xml
+++ b/java/res/xml/kbd_azerty_rows.xml
@@ -29,44 +29,44 @@
     >
         <Key
             latin:keyLabel="a"
-            latin:keyHintIcon="@drawable/key_hint_num1"
+            latin:keyHintLetter="1"
             latin:popupCharacters="@string/alternates_for_a"
             latin:keyEdgeFlags="left" />
         <Key
             latin:keyLabel="z"
-            latin:keyHintIcon="@drawable/key_hint_num2"
+            latin:keyHintLetter="2"
             latin:popupCharacters="@string/alternates_for_z" />
         <Key
             latin:keyLabel="e"
-            latin:keyHintIcon="@drawable/key_hint_num3"
+            latin:keyHintLetter="3"
             latin:popupCharacters="@string/alternates_for_e" />
         <Key
             latin:keyLabel="r"
-            latin:keyHintIcon="@drawable/key_hint_num4"
+            latin:keyHintLetter="4"
             latin:popupCharacters="@string/alternates_for_r" />
         <Key
             latin:keyLabel="t"
-            latin:keyHintIcon="@drawable/key_hint_num5"
+            latin:keyHintLetter="5"
             latin:popupCharacters="@string/alternates_for_t" />
         <Key
             latin:keyLabel="y"
-            latin:keyHintIcon="@drawable/key_hint_num6"
+            latin:keyHintLetter="6"
             latin:popupCharacters="@string/alternates_for_y" />
         <Key
             latin:keyLabel="u"
-            latin:keyHintIcon="@drawable/key_hint_num7"
+            latin:keyHintLetter="7"
             latin:popupCharacters="@string/alternates_for_u" />
         <Key
             latin:keyLabel="i"
-            latin:keyHintIcon="@drawable/key_hint_num8"
+            latin:keyHintLetter="8"
             latin:popupCharacters="@string/alternates_for_i" />
         <Key
             latin:keyLabel="o"
-            latin:keyHintIcon="@drawable/key_hint_num9"
+            latin:keyHintLetter="9"
             latin:popupCharacters="@string/alternates_for_o" />
         <Key
             latin:keyLabel="p"
-            latin:keyHintIcon="@drawable/key_hint_num0"
+            latin:keyHintLetter="0"
             latin:popupCharacters="@string/alternates_for_p"
             latin:keyWidth="fillRight"
             latin:keyEdgeFlags="right" />
diff --git a/java/res/xml/kbd_qwerty_row1.xml b/java/res/xml/kbd_qwerty_row1.xml
index ba804d3..8c3669d 100644
--- a/java/res/xml/kbd_qwerty_row1.xml
+++ b/java/res/xml/kbd_qwerty_row1.xml
@@ -27,44 +27,44 @@
     >
         <Key
             latin:keyLabel="q"
-            latin:keyHintIcon="@drawable/key_hint_num1"
+            latin:keyHintLetter="1"
             latin:popupCharacters="@string/alternates_for_q"
             latin:keyEdgeFlags="left" />
         <Key
             latin:keyLabel="w"
-            latin:keyHintIcon="@drawable/key_hint_num2"
+            latin:keyHintLetter="2"
             latin:popupCharacters="@string/alternates_for_w" />
         <Key
             latin:keyLabel="e"
-            latin:keyHintIcon="@drawable/key_hint_num3"
+            latin:keyHintLetter="3"
             latin:popupCharacters="@string/alternates_for_e" />
         <Key
             latin:keyLabel="r"
-            latin:keyHintIcon="@drawable/key_hint_num4"
+            latin:keyHintLetter="4"
             latin:popupCharacters="@string/alternates_for_r" />
         <Key
             latin:keyLabel="t"
-            latin:keyHintIcon="@drawable/key_hint_num5"
+            latin:keyHintLetter="5"
             latin:popupCharacters="@string/alternates_for_t" />
         <Key
             latin:keyLabel="y"
-            latin:keyHintIcon="@drawable/key_hint_num6"
+            latin:keyHintLetter="6"
             latin:popupCharacters="@string/alternates_for_y" />
         <Key
             latin:keyLabel="u"
-            latin:keyHintIcon="@drawable/key_hint_num7"
+            latin:keyHintLetter="7"
             latin:popupCharacters="@string/alternates_for_u" />
         <Key
             latin:keyLabel="i"
-            latin:keyHintIcon="@drawable/key_hint_num8"
+            latin:keyHintLetter="8"
             latin:popupCharacters="@string/alternates_for_i" />
         <Key
             latin:keyLabel="o"
-            latin:keyHintIcon="@drawable/key_hint_num9"
+            latin:keyHintLetter="9"
             latin:popupCharacters="@string/alternates_for_o" />
         <Key
             latin:keyLabel="p"
-            latin:keyHintIcon="@drawable/key_hint_num0"
+            latin:keyHintLetter="0"
             latin:popupCharacters="@string/alternates_for_p"
             latin:keyWidth="fillRight"
             latin:keyEdgeFlags="right" />
diff --git a/java/res/xml/kbd_qwerty_rows_scandinavia.xml b/java/res/xml/kbd_qwerty_rows_scandinavia.xml
index 8cb0640..2d7dcde 100644
--- a/java/res/xml/kbd_qwerty_rows_scandinavia.xml
+++ b/java/res/xml/kbd_qwerty_rows_scandinavia.xml
@@ -29,45 +29,45 @@
     >
         <Key
             latin:keyLabel="q"
-            latin:keyHintIcon="@drawable/key_hint_num1"
+            latin:keyHintLetter="1"
             latin:popupCharacters="@string/alternates_for_q"
             latin:keyWidth="8.75%p"
             latin:keyEdgeFlags="left" />
         <Key
             latin:keyLabel="w"
-            latin:keyHintIcon="@drawable/key_hint_num2"
+            latin:keyHintLetter="2"
             latin:popupCharacters="@string/alternates_for_w" />
         <Key
             latin:keyLabel="e"
-            latin:keyHintIcon="@drawable/key_hint_num3"
+            latin:keyHintLetter="3"
             latin:popupCharacters="@string/alternates_for_e" />
         <Key
             latin:keyLabel="r"
-            latin:keyHintIcon="@drawable/key_hint_num4"
+            latin:keyHintLetter="4"
             latin:popupCharacters="@string/alternates_for_r" />
         <Key
             latin:keyLabel="t"
-            latin:keyHintIcon="@drawable/key_hint_num5"
+            latin:keyHintLetter="5"
             latin:popupCharacters="@string/alternates_for_t" />
         <Key
             latin:keyLabel="y"
-            latin:keyHintIcon="@drawable/key_hint_num6"
+            latin:keyHintLetter="6"
             latin:popupCharacters="@string/alternates_for_y" />
         <Key
             latin:keyLabel="u"
-            latin:keyHintIcon="@drawable/key_hint_num7"
+            latin:keyHintLetter="7"
             latin:popupCharacters="@string/alternates_for_u" />
         <Key
             latin:keyLabel="i"
-            latin:keyHintIcon="@drawable/key_hint_num8"
+            latin:keyHintLetter="8"
             latin:popupCharacters="@string/alternates_for_i" />
         <Key
             latin:keyLabel="o"
-            latin:keyHintIcon="@drawable/key_hint_num9"
+            latin:keyHintLetter="9"
             latin:popupCharacters="@string/alternates_for_o" />
         <Key
             latin:keyLabel="p"
-            latin:keyHintIcon="@drawable/key_hint_num0"
+            latin:keyHintLetter="0"
             latin:popupCharacters="@string/alternates_for_p" />
         <Key
             latin:keyLabel="å"
diff --git a/java/res/xml/kbd_qwertz_rows.xml b/java/res/xml/kbd_qwertz_rows.xml
index 603cf35..0d70b26 100644
--- a/java/res/xml/kbd_qwertz_rows.xml
+++ b/java/res/xml/kbd_qwertz_rows.xml
@@ -29,44 +29,44 @@
     >
         <Key
             latin:keyLabel="q"
-            latin:keyHintIcon="@drawable/key_hint_num1"
+            latin:keyHintLetter="1"
             latin:popupCharacters="@string/alternates_for_q"
             latin:keyEdgeFlags="left" />
         <Key
             latin:keyLabel="w"
-            latin:keyHintIcon="@drawable/key_hint_num2"
+            latin:keyHintLetter="2"
             latin:popupCharacters="@string/alternates_for_w" />
         <Key
             latin:keyLabel="e"
-            latin:keyHintIcon="@drawable/key_hint_num3"
+            latin:keyHintLetter="3"
             latin:popupCharacters="@string/alternates_for_e" />
         <Key
             latin:keyLabel="r"
-            latin:keyHintIcon="@drawable/key_hint_num4"
+            latin:keyHintLetter="4"
             latin:popupCharacters="@string/alternates_for_r" />
         <Key
             latin:keyLabel="t"
-            latin:keyHintIcon="@drawable/key_hint_num5"
+            latin:keyHintLetter="5"
             latin:popupCharacters="@string/alternates_for_t" />
         <Key
             latin:keyLabel="z"
-            latin:keyHintIcon="@drawable/key_hint_num6"
+            latin:keyHintLetter="6"
             latin:popupCharacters="@string/alternates_for_z" />
         <Key
             latin:keyLabel="u"
-            latin:keyHintIcon="@drawable/key_hint_num7"
+            latin:keyHintLetter="7"
             latin:popupCharacters="@string/alternates_for_u" />
         <Key
             latin:keyLabel="i"
-            latin:keyHintIcon="@drawable/key_hint_num8"
+            latin:keyHintLetter="8"
             latin:popupCharacters="@string/alternates_for_i" />
         <Key
             latin:keyLabel="o"
-            latin:keyHintIcon="@drawable/key_hint_num9"
+            latin:keyHintLetter="9"
             latin:popupCharacters="@string/alternates_for_o" />
         <Key
             latin:keyLabel="p"
-            latin:keyHintIcon="@drawable/key_hint_num0"
+            latin:keyHintLetter="0"
             latin:popupCharacters="@string/alternates_for_p"
             latin:keyWidth="fillRight"
             latin:keyEdgeFlags="right" />
diff --git a/java/res/xml/kbd_ru_rows.xml b/java/res/xml/kbd_ru_rows.xml
index 76250a3..ff9fef4 100644
--- a/java/res/xml/kbd_ru_rows.xml
+++ b/java/res/xml/kbd_ru_rows.xml
@@ -29,45 +29,45 @@
     >
         <Key
             latin:keyLabel="й"
-            latin:keyHintIcon="@drawable/key_hint_num1"
+            latin:keyHintLetter="1"
             latin:popupCharacters="1"
             latin:keyWidth="8.75%p"
             latin:keyEdgeFlags="left" />
         <Key
             latin:keyLabel="ц"
-            latin:keyHintIcon="@drawable/key_hint_num2"
+            latin:keyHintLetter="2"
             latin:popupCharacters="2" />
         <Key
             latin:keyLabel="у"
-            latin:keyHintIcon="@drawable/key_hint_num3"
+            latin:keyHintLetter="3"
             latin:popupCharacters="3" />
         <Key
             latin:keyLabel="к"
-            latin:keyHintIcon="@drawable/key_hint_num4"
+            latin:keyHintLetter="4"
             latin:popupCharacters="4" />
         <Key
             latin:keyLabel="е"
-            latin:keyHintIcon="@drawable/key_hint_num5"
+            latin:keyHintLetter="5"
             latin:popupCharacters="@string/alternates_for_cyrillic_e" />
         <Key
             latin:keyLabel="н"
-            latin:keyHintIcon="@drawable/key_hint_num6"
+            latin:keyHintLetter="6"
             latin:popupCharacters="6" />
         <Key
             latin:keyLabel="г"
-            latin:keyHintIcon="@drawable/key_hint_num7"
+            latin:keyHintLetter="7"
             latin:popupCharacters="7" />
         <Key
             latin:keyLabel="ш"
-            latin:keyHintIcon="@drawable/key_hint_num8"
+            latin:keyHintLetter="8"
             latin:popupCharacters="8" />
         <Key
             latin:keyLabel="щ"
-            latin:keyHintIcon="@drawable/key_hint_num9"
+            latin:keyHintLetter="9"
             latin:popupCharacters="9" />
         <Key
             latin:keyLabel="з"
-            latin:keyHintIcon="@drawable/key_hint_num0"
+            latin:keyHintLetter="0"
             latin:popupCharacters="0" />
         <Key
             latin:keyLabel="х"
diff --git a/java/res/xml/kbd_sr_rows.xml b/java/res/xml/kbd_sr_rows.xml
index 139af80..9f4b6a2 100644
--- a/java/res/xml/kbd_sr_rows.xml
+++ b/java/res/xml/kbd_sr_rows.xml
@@ -29,44 +29,44 @@
     >
         <Key
             latin:keyLabel="љ"
-            latin:keyHintIcon="@drawable/key_hint_num1"
+            latin:keyHintLetter="1"
             latin:popupCharacters="1"
             latin:keyEdgeFlags="left" />
         <Key
             latin:keyLabel="њ"
-            latin:keyHintIcon="@drawable/key_hint_num2"
+            latin:keyHintLetter="2"
             latin:popupCharacters="2" />
         <Key
             latin:keyLabel="е"
-            latin:keyHintIcon="@drawable/key_hint_num3"
+            latin:keyHintLetter="3"
             latin:popupCharacters="3" />
         <Key
             latin:keyLabel="р"
-            latin:keyHintIcon="@drawable/key_hint_num4"
+            latin:keyHintLetter="4"
             latin:popupCharacters="4" />
         <Key
             latin:keyLabel="т"
-            latin:keyHintIcon="@drawable/key_hint_num5"
+            latin:keyHintLetter="5"
             latin:popupCharacters="5" />
         <Key
             latin:keyLabel="з"
-            latin:keyHintIcon="@drawable/key_hint_num6"
+            latin:keyHintLetter="6"
             latin:popupCharacters="6" />
         <Key
             latin:keyLabel="у"
-            latin:keyHintIcon="@drawable/key_hint_num7"
+            latin:keyHintLetter="7"
             latin:popupCharacters="7" />
         <Key
             latin:keyLabel="и"
-            latin:keyHintIcon="@drawable/key_hint_num8"
+            latin:keyHintLetter="8"
             latin:popupCharacters="8" />
         <Key
             latin:keyLabel="о"
-            latin:keyHintIcon="@drawable/key_hint_num9"
+            latin:keyHintLetter="9"
             latin:popupCharacters="9" />
         <Key
             latin:keyLabel="п"
-            latin:keyHintIcon="@drawable/key_hint_num0"
+            latin:keyHintLetter="0"
             latin:popupCharacters="0" />
         <Key
             latin:keyLabel="ш"