* src/awn-background-3d.c:
        * src/awn-background-curves.c:
        * src/awn-background-edgy.c:
        * src/awn-background-flat.c:
        * src/awn-background-floaty.c:
        * src/awn-background.c:
        Changes to rendering which speed up things when using patterns.
        Helped a lot with flat, edgy & floaty, but not that much
        with 3d and curved.