diff --git a/res/drawable-mdpi/nfc_how_it_works.png b/res/drawable-mdpi/nfc_how_it_works.png
index ef3cd8c..1dc272c 100644
--- a/res/drawable-mdpi/nfc_how_it_works.png
+++ b/res/drawable-mdpi/nfc_how_it_works.png
Binary files differ
diff --git a/res/drawable-xhdpi/nfc_how_it_works.png b/res/drawable-xhdpi/nfc_how_it_works.png
index 874d32f..e61d77f 100644
--- a/res/drawable-xhdpi/nfc_how_it_works.png
+++ b/res/drawable-xhdpi/nfc_how_it_works.png
Binary files differ
diff --git a/res/drawable-xxhdpi/nfc_how_it_works.png b/res/drawable-xxhdpi/nfc_how_it_works.png
index 748ad6a..0c816bd 100644
--- a/res/drawable-xxhdpi/nfc_how_it_works.png
+++ b/res/drawable-xxhdpi/nfc_how_it_works.png
Binary files differ
diff --git a/res/drawable-xxxhdpi/nfc_how_it_works.png b/res/drawable-xxxhdpi/nfc_how_it_works.png
index d970dae..0add50f 100644
--- a/res/drawable-xxxhdpi/nfc_how_it_works.png
+++ b/res/drawable-xxxhdpi/nfc_how_it_works.png
Binary files differ