I'm doing line art in Inkscape. For the sake of saneness, I need the fill of a path to occlude paths beneath it, so I just fill everything with white.
However, while exporting to a bitmap, I don't want the fills to actually be white - I just want to export the lines, with no fills.
Here's a example:
what I want:
I know I can replace the white with transparent in other software, but often the results are not perfect (antialiasing results in white fringing).
I also know this can be done with boolean operations on the paths, but it's not really feasible for complex work, and destroys information in the process.