I was playing around with Photoshop and made this wallpaper for the installer background in Joxer Invaders. You can either save the GIF version or the zipped BMP version (if you don't have a utility to convert GIF to BMP download the BMP). Or just right-click on the background and choose "Set as wallpaper" (or however your browser phrases it). Be sure to set your wallpaper options to "tiled" and not "centered" or "stretched".