This is a painting and photo-retouching program for the PowerPC Macintosh. It s an image-editing program that supports up to eight image layers with alpha channels and a mask layer. All of your current work is stored inside the Portfolio, which is loaded and saved automatically. When you re completely finished with a painting, photo or collage, you Export it. The picture file can then be found in the Exports folder when you quit. If you want to import a picture, just place the image file in the Imports folder and start Rainbow. Place only copies of the picture files in that folder, since the program will automatically keep the folder clean by destroying the file after the import.