Notifying widgets to use dark text when rendered on light wallpaper

Bug: 109954539
Change-Id: Ifab21626a070c35b351ea99ea3f09f3bf2230d19
diff --git a/src/com/android/launcher3/widget/LauncherAppWidgetHostView.java b/src/com/android/launcher3/widget/LauncherAppWidgetHostView.java
index 35e44bb..dce839f 100644
--- a/src/com/android/launcher3/widget/LauncherAppWidgetHostView.java
+++ b/src/com/android/launcher3/widget/LauncherAppWidgetHostView.java
@@ -44,6 +44,7 @@
 import com.android.launcher3.StylusEventHelper;
 import com.android.launcher3.Utilities;
 import com.android.launcher3.dragndrop.DragLayer;
+import com.android.launcher3.util.Themes;
 import com.android.launcher3.views.BaseDragLayer.TouchCompleteListener;
 
 /**
@@ -97,6 +98,9 @@
         if (Utilities.ATLEAST_OREO) {
             setExecutor(Utilities.THREAD_POOL_EXECUTOR);
         }
+        if (Utilities.ATLEAST_Q && Themes.getAttrBoolean(mLauncher, R.attr.isWorkspaceDarkText)) {
+            setOnLightBackground(true);
+        }
     }
 
     @Override