I created this demo for anyone to use as an example if they wanted to create brightnesses in a more effective way not using the scratch brightness feature but instead using a black slide, a white slide and a pure (FF0000) red slide. I did use colour effect and transparency effect for this. If you want to create greys you can blend the black and white slides together. At the moment only either the black one go's or the white one. If they go simultaneously(sp?) you will get grey.
