Background/foreground color of Window, Buttons, etc

Hi everyone,

I can’t figure out how to set the background color of the Window and Button widgets and would be very grateful for some help.

I got the text and text background to change using this:

saveButton = Button(GAccessor.markup(GtkLabel(""),"""\n<span background=“blue” foreground=“white” size=“medium”>SAVE"""))

but the Button window beyond the text doesn’t change… and all attempts to change the Window background have failed.