There's really only one thing that I know how to do in terms of digital art, and that is using color-to-alpha filters to change the color of images, but it's amazing how much mileage you can get from that.

In this case, I've taken what I think is a CDE or Solaris bundled wallpaper which is a very simple, attractive, and unobtrusive tiling wallpaper and changed it to the highlight color of the "Pine" Qt colorscheme, which is sort of a dark green. Hope somebody else gets some enjoyment out of it.

The source image can be found here: https://github.com/wallace-aph/tiles-and-such/blob/master/Solaris%20%26%20CDE/solaris-texture-rips/solaris_dolphins.png