Index: uspace/lib/gui/button.c
===================================================================
--- uspace/lib/gui/button.c	(revision d723a80511b6dd3f705759edc7127c26a1d91c74)
+++ uspace/lib/gui/button.c	(revision 14ad75c57474226f3612c10d9045c0e69a567cba)
@@ -61,4 +61,5 @@
 	drawctx_init(&drawctx, surface);
 
+	drawctx_set_compose(&drawctx, compose_over);
 	drawctx_set_source(&drawctx, &btn->background);
 	drawctx_transfer(&drawctx, widget->hpos, widget->vpos,