added another transparency quantization method

diff --git a/image.h b/image.h
index 1da3deb328d61bf4cffe6eb5180cf592a5126978..3bfb76a4dbbcd37a576afa74569f98108cdc54d2 100644 (file)
--- a/image.h
+++ b/image.h
@@ -251,6 +251,7 @@ typedef enum i_ord_dith_tag
   od_vline,
   od_slashline, /* / line dither */
   od_backline, /* \ line dither */
+  od_tiny, /* small checkerbox */
   od_custom /* custom 8x8 map */
 } i_ord_dith;