--- rxvt-unicode/src/rxvtimg.h	2012/06/05 18:52:48	1.13
+++ rxvt-unicode/src/rxvtimg.h	2012/06/06 20:20:23	1.14
@@ -44,7 +44,7 @@
   rxvt_img *transform (int new_width, int new_height, double matrix[9], int repeat = RepeatNormal);
   rxvt_img *scale (int new_width, int new_height);
   rxvt_img *rotate (int new_width, int new_height, int x, int y, double phi, int repeat = RepeatNormal);
-  rxvt_img *convert_to (XRenderPictFormat *format);
+  rxvt_img *convert_to (XRenderPictFormat *format, const rxvt_color &bg);
   rxvt_img *blend (rxvt_img *img, double factor);
 };