Revise gesture floating preview design

Bug: 7043127
Change-Id: Ibf9a6d57279263d9b60753e0eb734b658eeda9f2
diff --git a/java/res/values/attrs.xml b/java/res/values/attrs.xml
index 05c53a4..e601397 100644
--- a/java/res/values/attrs.xml
+++ b/java/res/values/attrs.xml
@@ -77,12 +77,10 @@
         <attr name="gestureFloatingPreviewTextSize" format="dimension" />
         <attr name="gestureFloatingPreviewTextColor" format="color" />
         <attr name="gestureFloatingPreviewTextOffset" format="dimension" />
-        <attr name="gestureFloatingPreviewTextShadingColor" format="color" />
-        <attr name="gestureFloatingPreviewTextShadingBorder" format="dimension" />
-        <attr name="gestureFloatingPreviewTextShadowColor" format="color" />
-        <attr name="gestureFloatingPreviewTextShadowBorder" format="dimension" />
-        <attr name="gestureFloatingPreviewTextConnectorColor" format="color" />
-        <attr name="gestureFloatingPreviewTextConnectorWidth" format="dimension" />
+        <attr name="gestureFloatingPreviewColor" format="color" />
+        <attr name="gestureFloatingPreviewHorizontalPadding" format="dimension" />
+        <attr name="gestureFloatingPreviewVerticalPadding" format="dimension" />
+        <attr name="gestureFloatingPreviewRoundRadius" format="dimension" />
         <!-- Delay after gesture input and gesture floating preview text dismissing in millisecond -->
         <attr name="gestureFloatingPreviewTextLingerTimeout" format="integer" />
         <!-- Delay after gesture trail starts fading out in millisecond. -->