Manipulating Raw Picture Data

[Jim Lambert]

On Jun 26, 2008, at 8:47 PM, use-revolution-request at lists.runrev.com  
wrote:

>> I have an image where different regions consist of known colors. I
>> would like to fill a region with color at runtime as a sort of
>> highlight. The situation does not lend itself to using separate
>> transparent png images

In addition to the earlier suggestions, take a long look at inkmode.
By cleverly overlaying a colored graphic on top of your image and  
adjusting inkmode, it should be possible to make specific colored  
areas change color.
You can do this very quickly and without resorting to polygons or  
imagedata.
An old trick from the 8-bit monitor days!

Jim Lambert