Jonathan Nielsen wrote:
>> This should help you out:
>>
>> http://www.tek-tips.com/faqs.cfm?fid=6789
>>
> 
> Actually looks like I'm a bit wrong about that (that's for window
> icons)... but this seems to indicate that at least PNG alpha-channel
> transparency works.  I couldn't find much info on GIF transparency.
> 
> http://docstore.mik.ua/orelly/perl3/tk/ch17_11.htm
> 
> -Jonathan Nielsen

Thanks, but I don't think ruby has native support for PNGs and after 
some more research, it doesn't have support for  transparent GIFs 
either... there is an extension called Img,  but I'm not sure how to 
integrate that into Ruby...
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