Card Dance can use an image to set a random pattern for the tiles to move. Shatter can also use gradients or colors fot custom maps and custom shapes. These are your easiest options. You could also use a mosaic color pattern as an overlay with color blend mode to change the color balance of the sections.
Look here for advanced Card Dance.
Look here for advanced Shatter Maps.
Let me know if you need help on blend modes.
Unfortunately I tried that Advanced Card Dance Tut earlier, but received the infamous 404. I'll contimue to search, but thanks anyhow.
When you suggest a mosaic colour pattern overlay, do you mean create a master grid with varying greyscale squares in, say, Photoshop, and using blend mode on this, or actually colouring the tiles and using these in blend mode.