>
> I know there are some image-oriented CFX tags and the like out there - but
> I'm curious if anyone knows of an existing tool/tag that could grab a GIF
> file, set a certain RGB color within that GIF file to be transparent, and
> resave the file. Preferably something like a CFX tag that I can
> trigger once
> the process to generate the GIF in question has finished.
Been a while since I studied gif formats, but as I recall the 89a headers
transparency was indicated by a single byte in the image header (an index
into the color map). You could probably just read through the colormap data,
find the closet matching RGB, then change that one byte.
--min
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