Sure thing. I've implemented the unit test. For documentation - there doesn't seem to be an sdl2ext_sprite module reference, not sure if I want to tackle that head on just yet. Would a tutorial centered around "Drawing low-res graphics on high-res screens" suffice? I kind of wish sphinx-apidoc would automatically document the high-level Python classes. Any interest in documenting summary, :param, :type:, :returns:, and :rtype: in the code or do you like to keep it separate?