
If I have a png, how do I build it into nvidia-settings?

    - run `gdk-pixbuf-csource --struct --name=foo_pixdata foo.png > foo_pixdata.h`
    - add to the BannerArtworkType enum in image.h
    - include foo_pixdata.h in ctkbanner.c
    - add an entry to the ArtworkTable[] in ctkbanner.c:select_artwork()

