1. Get a screenshot of the work area, including the colors and grid.
2. Paste it into a new image in photoshop or GIMP.
3. Make a transparent grid based on the original.
4. Find a picture somewhere, and paste it under the grid, or just draw one.
5. Copy the transparent grid, and fill it in with the available colors.
6. Transfer the finished image square by square into WLO.