How to get RGBA support in Ubuntu

RGBA stands for Red Green Blue Alpha. When applied to the computer desktop it means a whole world more. It means full-blown transparency with the ability to control the transparency like never before. This feature was supposed to make it into Ubuntu 10.04, but because of some show-stopping issues, it was pulled. It is now slated to make it into 10.10 and, judging from how well it is working now,