diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index a71e7cc..8a67336 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -108,6 +108,14 @@
         <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" />
         <!-- Delay after gesture trail starts fading out in millisecond. -->
         <attr name="gesturePreviewTrailFadeoutStartDelay" format="integer" />
         <!-- Duration while gesture preview trail is fading out in millisecond. -->
diff --git a/java/res/values/dimens.xml b/java/res/values/dimens.xml
index da735cf..5c33275 100644
--- a/java/res/values/dimens.xml
+++ b/java/res/values/dimens.xml
@@ -101,6 +101,14 @@
     <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>
     <!-- Percentages of gesture preview taril body and shadow, in proportion to the trail width.
diff --git a/java/res/values/styles.xml b/java/res/values/styles.xml
index dad7e20..fa40e51 100644
--- a/java/res/values/styles.xml
+++ b/java/res/values/styles.xml
@@ -64,6 +64,10 @@
         <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>