Perhaps a light gel with different colours might do the trick? IE: if you made the arch 'glass'into a b&w image with the leading showing as black, you could perhaps colour the white bits (the glass)yellow or whatever, turn the whole thing into a 2d and use it as a light gel?

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All the Woes of a World by Jonathan Icknield aka The Bryster

And in my final hours - I would cling rather to the tattooed hand of kindness - than the unblemished hand of hate...