Correct Color and Tone One of the reasons why Photoshop is extremely popular because of its advance color correction and tone. In this tutorial I will show you how to use some basic techniques to fix a image and get professional results. By Ray Silcox. Posted on Sunday, 01 October 2006. Ray Effect Ever wondered how some paintings have an extra glow coming out of them. Well this is the trick designers use to achieve it. By Ray Silcox. Posted on Sunday, 01 October 2006.