avoid zero zooming. import differential and zoom drawing from paint(1). make new layers transparent by default. minor fixes.

1 files changed, 1 insertions, 0 deletions

diff --git a/dat.h b/dat.h
index 352a394..f08a329 100644
--- a/dat.h
+++ b/dat.h
@@ -19,6 +19,7 @@ struct Layer
 	RFrame;
 	char *name;
 	Image *image;
+	Image *history[1024];
 	Layer *prev, *next;
 };