I have designed myself into a corner that I can't figure out how to escape. I made a candle shape with thick lines that overlap in such a way that they obscure underlying shapes. It looks great with a white background, but I actually want the white lines to be transparent in the final export. I have tried expand stroke, but that just separates the white lines from the underlying shapes and using those as "cookie cutters" still doesn't yield what I want. Conceptually, a "flatten all to new curve" would do what I want (assuming I could specify to ignore white). I tried some fx masking, but still couldn't get there. Any thoughts on how to leave only the visible blue shapes in a new object?