Exposing method to get theme colors

Bug: 183641907
Test: Manual
Change-Id: If69d28ad5ca7caa105f5fe2f783e668187e893df
diff --git a/iconloaderlib/src/com/android/launcher3/icons/ThemedIconDrawable.java b/iconloaderlib/src/com/android/launcher3/icons/ThemedIconDrawable.java
index efbabc7..7425c68 100644
--- a/iconloaderlib/src/com/android/launcher3/icons/ThemedIconDrawable.java
+++ b/iconloaderlib/src/com/android/launcher3/icons/ThemedIconDrawable.java
@@ -255,7 +255,10 @@
         }
     }
 
-    private static int[] getColors(Context context) {
+    /**
+     * Get an int array representing background and foreground colors for themed icons
+     */
+    public static int[] getColors(Context context) {
         Resources res = context.getResources();
         int[] colors = new int[2];
         if ((res.getConfiguration().uiMode & UI_MODE_NIGHT_MASK) == UI_MODE_NIGHT_YES) {