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As per the title, is it possible to specify a boolean source specification for a layer entry. Something like:
"255/0@1 - 1/0@1" where the '-' would be a boolean subtraction of one layer from another.
I have a file where I would like to view the inverse of the data (i.e. negative), where I have the data extents on layer 255. This is useful when reviewing returned data from a mask shop, who may have inverted the layers. I had a look at https://www.klayout.de/doc-qt5/manual/layer_source_expert.html which is very useful for geometric transformations of the data, but I couldn't see a way to combine multiple data layers into one view. Hopefully my question makes sense?