gEDA-dev: Xrender support for lesstif PCB

[Stuart Brorson]

>> Yep.  Will be like using XOR in gerbv to see all layer overlaps at once,
>> but selected according to user pref in the color choices, right?
>
> Gerbv.
>
> Oh, we *really* need this for gerbv.

Please put this into the gerb feature request tracker on SF.  If you
remind us what fcn calls will support transparency in the feature
request, that would be just ducky!

Stuart