diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index 8a67336..478a5c0 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -108,25 +108,25 @@
         <attr name="backgroundDimAlpha" format="integer" />
         <!-- More keys keyboard will shown at touched point. -->
         <attr name="showMoreKeysKeyboardAtTouchedPoint" format="boolean" />
-        <!-- Minimum distance between gesture preview trail sampling points. -->
-        <attr name="gesturePreviewTrailMinSamplingDistance" format="dimension" />
-        <!-- Maximum angular threshold between gesture preview trail interpolation segments in degree. -->
-        <attr name="gesturePreviewTrailMaxInterpolationAngularThreshold" format="integer" />
-        <!-- Maximum distance threshold between gesture preview trail interpolation segments. -->
-        <attr name="gesturePreviewTrailMaxInterpolationDistanceThreshold" format="dimension" />
-        <!-- Maximum number of gesture preview trail interpolation segments. -->
-        <attr name="gesturePreviewTrailMaxInterpolationSegments" format="integer" />
+        <!-- Minimum distance between gesture trail sampling points. -->
+        <attr name="gestureTrailMinSamplingDistance" format="dimension" />
+        <!-- Maximum angular threshold between gesture trail interpolation segments in degree. -->
+        <attr name="gestureTrailMaxInterpolationAngularThreshold" format="integer" />
+        <!-- Maximum distance threshold between gesture trail interpolation segments. -->
+        <attr name="gestureTrailMaxInterpolationDistanceThreshold" format="dimension" />
+        <!-- Maximum number of gesture trail interpolation segments. -->
+        <attr name="gestureTrailMaxInterpolationSegments" format="integer" />
         <!-- Delay after gesture trail starts fading out in millisecond. -->
-        <attr name="gesturePreviewTrailFadeoutStartDelay" format="integer" />
-        <!-- Duration while gesture preview trail is fading out in millisecond. -->
-        <attr name="gesturePreviewTrailFadeoutDuration" format="integer" />
-        <!-- Interval of updating gesture preview trail in millisecond. -->
-        <attr name="gesturePreviewTrailUpdateInterval" format="integer" />
-        <attr name="gesturePreviewTrailColor" format="color" />
-        <attr name="gesturePreviewTrailStartWidth" format="dimension" />
-        <attr name="gesturePreviewTrailEndWidth" format="dimension" />
-        <attr name="gesturePreviewTrailBodyRatio" format="integer" />
-        <attr name="gesturePreviewTrailShadowRatio" format="integer" />
+        <attr name="gestureTrailFadeoutStartDelay" format="integer" />
+        <!-- Duration while gesture trail is fading out in millisecond. -->
+        <attr name="gestureTrailFadeoutDuration" format="integer" />
+        <!-- Interval of updating gesture trail in millisecond. -->
+        <attr name="gestureTrailUpdateInterval" format="integer" />
+        <attr name="gestureTrailColor" format="color" />
+        <attr name="gestureTrailStartWidth" format="dimension" />
+        <attr name="gestureTrailEndWidth" format="dimension" />
+        <attr name="gestureTrailBodyRatio" format="integer" />
+        <attr name="gestureTrailShadowRatio" format="integer" />
         <!-- Delay after gesture input and gesture floating preview text dismissing in millisecond -->
         <attr name="gestureFloatingPreviewTextLingerTimeout" format="integer" />
         <!-- Attributes for GestureFloatingPreviewText -->
diff --git a/java/res/values/config.xml b/java/res/values/config.xml
index 23b5794..742860b 100644
--- a/java/res/values/config.xml
+++ b/java/res/values/config.xml
@@ -75,9 +75,9 @@
     <bool name="config_show_more_keys_keyboard_at_touched_point">false</bool>
     <bool name="config_block_potentially_offensive">true</bool>
     <integer name="config_gesture_floating_preview_text_linger_timeout">200</integer>
-    <integer name="config_gesture_preview_trail_fadeout_start_delay">100</integer>
-    <integer name="config_gesture_preview_trail_fadeout_duration">800</integer>
-    <integer name="config_gesture_preview_trail_update_interval">20</integer>
+    <integer name="config_gesture_trail_fadeout_start_delay">100</integer>
+    <integer name="config_gesture_trail_fadeout_duration">800</integer>
+    <integer name="config_gesture_trail_update_interval">20</integer>
     <!-- Static threshold for gesture after fast typing (msec) -->
     <integer name="config_gesture_static_time_threshold_after_fast_typing">500</integer>
     <!-- Static threshold for starting gesture detection (keyWidth%/sec) -->
diff --git a/java/res/values/dimens.xml b/java/res/values/dimens.xml
index 5c33275..b6413b3 100644
--- a/java/res/values/dimens.xml
+++ b/java/res/values/dimens.xml
@@ -100,22 +100,22 @@
     <integer name="suggestions_count_in_strip">3</integer>
     <fraction name="center_suggestion_percentile">36%</fraction>
 
-    <!-- Gesture preview trail parameters -->
-    <!-- Minimum distance between gesture preview trail sampling points. -->
-    <dimen name="gesture_preview_trail_min_sampling_distance">6.4dp</dimen>
-    <!-- Maximum angular threshold between gesture preview trails interpolation segments in degree. -->
-    <integer name="gesture_preview_trail_max_interpolation_angular_threshold">15</integer>
-    <!-- Maximum distance threshold between gesture preview trails interpolation segments. -->
-    <dimen name="gesture_preview_trail_max_interpolation_distance_threshold">16.0dp</dimen>
-    <!-- Maximum number of gesture preview trail interpolation segments. -->
-    <integer name="gesture_preview_trail_max_interpolation_segments">6</integer>
-    <dimen name="gesture_preview_trail_start_width">10.0dp</dimen>
-    <dimen name="gesture_preview_trail_end_width">2.5dp</dimen>
+    <!-- Gesture trail parameters -->
+    <!-- Minimum distance between gesture trail sampling points. -->
+    <dimen name="gesture_trail_min_sampling_distance">6.4dp</dimen>
+    <!-- Maximum angular threshold between gesture trails interpolation segments in degree. -->
+    <integer name="gesture_trail_max_interpolation_angular_threshold">15</integer>
+    <!-- Maximum distance threshold between gesture trails interpolation segments. -->
+    <dimen name="gesture_trail_max_interpolation_distance_threshold">16.0dp</dimen>
+    <!-- Maximum number of gesture trail interpolation segments. -->
+    <integer name="gesture_trail_max_interpolation_segments">6</integer>
+    <dimen name="gesture_trail_start_width">10.0dp</dimen>
+    <dimen name="gesture_trail_end_width">2.5dp</dimen>
     <!-- Percentages of gesture preview taril body and shadow, in proportion to the trail width.
          A negative value of the shadow ratio disables drawing shadow. -->
     <!-- TODO: May use the shadow to alleviate rugged trail drawing. -->
-    <integer name="gesture_preview_trail_body_ratio">100</integer>
-    <integer name="gesture_preview_trail_shadow_ratio">-1</integer>
+    <integer name="gesture_trail_body_ratio">100</integer>
+    <integer name="gesture_trail_shadow_ratio">-1</integer>
     <!-- Gesture floating preview text parameters -->
     <dimen name="gesture_floating_preview_text_size">24dp</dimen>
     <dimen name="gesture_floating_preview_text_offset">73dp</dimen>
diff --git a/java/res/values/styles.xml b/java/res/values/styles.xml
index fa40e51..8b6c29e 100644
--- a/java/res/values/styles.xml
+++ b/java/res/values/styles.xml
@@ -64,18 +64,18 @@
         <item name="gestureFloatingPreviewHorizontalPadding">@dimen/gesture_floating_preview_horizontal_padding</item>
         <item name="gestureFloatingPreviewVerticalPadding">@dimen/gesture_floating_preview_vertical_padding</item>
         <item name="gestureFloatingPreviewRoundRadius">@dimen/gesture_floating_preview_round_radius</item>
-        <item name="gesturePreviewTrailMinSamplingDistance">@dimen/gesture_preview_trail_min_sampling_distance</item>
-        <item name="gesturePreviewTrailMaxInterpolationAngularThreshold">@integer/gesture_preview_trail_max_interpolation_angular_threshold</item>
-        <item name="gesturePreviewTrailMaxInterpolationDistanceThreshold">@dimen/gesture_preview_trail_max_interpolation_distance_threshold</item>
-        <item name="gesturePreviewTrailMaxInterpolationSegments">@integer/gesture_preview_trail_max_interpolation_segments</item>
-        <item name="gesturePreviewTrailFadeoutStartDelay">@integer/config_gesture_preview_trail_fadeout_start_delay</item>
-        <item name="gesturePreviewTrailFadeoutDuration">@integer/config_gesture_preview_trail_fadeout_duration</item>
-        <item name="gesturePreviewTrailUpdateInterval">@integer/config_gesture_preview_trail_update_interval</item>
-        <item name="gesturePreviewTrailColor">@color/highlight_color_default</item>
-        <item name="gesturePreviewTrailStartWidth">@dimen/gesture_preview_trail_start_width</item>
-        <item name="gesturePreviewTrailEndWidth">@dimen/gesture_preview_trail_end_width</item>
-        <item name="gesturePreviewTrailBodyRatio">@integer/gesture_preview_trail_body_ratio</item>
-        <item name="gesturePreviewTrailShadowRatio">@integer/gesture_preview_trail_shadow_ratio</item>
+        <item name="gestureTrailMinSamplingDistance">@dimen/gesture_trail_min_sampling_distance</item>
+        <item name="gestureTrailMaxInterpolationAngularThreshold">@integer/gesture_trail_max_interpolation_angular_threshold</item>
+        <item name="gestureTrailMaxInterpolationDistanceThreshold">@dimen/gesture_trail_max_interpolation_distance_threshold</item>
+        <item name="gestureTrailMaxInterpolationSegments">@integer/gesture_trail_max_interpolation_segments</item>
+        <item name="gestureTrailFadeoutStartDelay">@integer/config_gesture_trail_fadeout_start_delay</item>
+        <item name="gestureTrailFadeoutDuration">@integer/config_gesture_trail_fadeout_duration</item>
+        <item name="gestureTrailUpdateInterval">@integer/config_gesture_trail_update_interval</item>
+        <item name="gestureTrailColor">@color/highlight_color_default</item>
+        <item name="gestureTrailStartWidth">@dimen/gesture_trail_start_width</item>
+        <item name="gestureTrailEndWidth">@dimen/gesture_trail_end_width</item>
+        <item name="gestureTrailBodyRatio">@integer/gesture_trail_body_ratio</item>
+        <item name="gestureTrailShadowRatio">@integer/gesture_trail_shadow_ratio</item>
         <!-- Common attributes of MainKeyboardView -->
         <item name="keyHysteresisDistance">@dimen/config_key_hysteresis_distance</item>
         <item name="keyHysteresisDistanceForSlidingModifier">@dimen/config_key_hysteresis_distance_for_sliding_modifier</item>
@@ -348,7 +348,7 @@
         <item name="keyTextShadowRadius">0.0</item>
         <item name="slidingKeyInputPreviewColor">@color/highlight_translucent_color_ics</item>
         <item name="gestureFloatingPreviewTextColor">@color/highlight_color_ics</item>
-        <item name="gesturePreviewTrailColor">@color/highlight_color_ics</item>
+        <item name="gestureTrailColor">@color/highlight_color_ics</item>
     </style>
     <style
         name="MainKeyboardView.IceCreamSandwich"