// type is not *image.Paletted.
type embeddedPaletted struct {
	*image.Paletted
}

// TestPaletted tests that the drawPaletted function behaves the same
// regardless of whether dst is an *image.Paletted.
func TestPaletted(t *testing.T) {
	f, err := os.Open("../testdata/video-001.png")
	if err != nil {
		t.Fatalf("open: %v", err)
	}
	defer f.Close()