Improve handling of launching translucent occluding activities.

If the window is translucent we don't want to draw a solid color starting view. We also don't want to translate/scale it, since it's transparent.

Bug: 303010980
Test: launch assistant
Flag: com.android.systemui.translucent_occluding_activity_fix
Change-Id: I11e75fe0215ab812d32ccc8aa2758b6fe58d86c3
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index 23422d1..4bd8b3b 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -1129,3 +1129,13 @@
     purpose: PURPOSE_BUGFIX
   }
 }
+
+flag {
+  name: "translucent_occluding_activity_fix"
+  namespace: "systemui"
+  description: "Fixes occlusion animation for transluent activities"
+  bug: "303010980"
+  metadata {
+    purpose: PURPOSE_BUGFIX
+  }
+}
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