... composited layers may have color issuesof their own, so it’s better to separate the color troubles that your layers mighthave. Once you’ve corrected each layer, you can composite them together andthen ... stay inside these averages, the odds are pretty good that yourvideo will not be cropped outside the edge of the monitor. The action safe areais the larger of the two regions, while the title safe ... another, the upperclip will simply obscure the lower clip. So, after creating your stack of video,you must define the method by which each layer will reveal the contents of theunderlying layers....