Fix emulated glColor in es2 mode.
diff --git a/libs/rs/rsProgramVertex.h b/libs/rs/rsProgramVertex.h
index 4748acc..8c63d82 100644
--- a/libs/rs/rsProgramVertex.h
+++ b/libs/rs/rsProgramVertex.h
@@ -79,6 +79,7 @@
     ObjectBaseRef<Type> mAllocType;
 
 
+    float color[4];
 };