Currently the toggle_fullscreen() contain these lines:

This function only works under the UNIX X11 video driver. For most situations it is better to call pygame.display.set_mode() with new display flags.

This is no longer accurate as the function works on windows for sure (tested) and looking at the code likely works on mac and with other display drivers on linux too. I believe it is also

Better detection and error messages for invalid values during Actor initialization would be useful to aid users in debugging.

Expected result:
Better and consistent error messages to aid in debugging and catch obvious invalid values.

Actual result:
The error messages are confusing (for beginner programmers) and inconsistent. And in one case the error is not detected at all.

Here are s