diff --git a/ggdt/tests/ref/indexed/blended_rect_drawing.png b/ggdt/tests/ref/indexed/blended_rect_drawing.png
index ae74446..f033cc1 100644
Binary files a/ggdt/tests/ref/indexed/blended_rect_drawing.png and b/ggdt/tests/ref/indexed/blended_rect_drawing.png differ