Restoring black and white photos on Affinity Photo iPad and coloring. Using Affinity Photo on the desktop the process was simple, 1. select the photo, 2. make adjustments ,fix scratches, and so forth, 3. click on recolor, 4. select the color, 4. then invert the recolor layer ( command i on Mac) switch to white, then start painting and continue this process until completion. I cannot find a reference regarding the process for the iPad once I click on recolor and select a color? How do I invert the recolor layer to start painting in new colors.