Fix the background of the pixel_buffer
-rw-r--r-- 6 .gitignore
-rwxr-xr-x 10423 CanvasFrame.py
-rwxr-xr-x 4431 CanvasModel.py
-rwxr-xr-x 7813 CanvasView.py
-rw-r--r-- 29 Makefile
-rwxr-xr-x 1507 PoPiPaint.py
-rw-r--r-- 208 README
-rw-r--r-- 166 TODO
-rw-r--r-- 1064 TUTORIAL
drwxr-xr-x - patterns
drwxr-xr-x - res
drwxr-xr-x - src_images
drwxr-xr-x - tools