THEME - use the Launcher3's dialogCornerRadius instead of Android's

res/values-v28/dimens.xml

@@ -15,5 +15,5 @@
 -->
 
 <resources>
-    <dimen name="dialogCornerRadius">?android:attr/dialogCornerRadius</dimen>
+    <dimen name="dialogCornerRadius">@dimen/default_dialog_corner_radius</dimen>
 </resources>

src/com/android/launcher3/util/Themes.java

@@ -68,8 +68,7 @@ public class Themes {
     }
 
     public static float getDialogCornerRadius(Context context) {
-        return getDimension(context, android.R.attr.dialogCornerRadius,
-                context.getResources().getDimension(R.dimen.default_dialog_corner_radius));
+        return context.getResources().getDimension(R.dimen.dialogCornerRadius);
     }
 
     public static float getDimension(Context context, int attr, float defaultValue) {