JPEXS Free Flash Decompiler Issue Tracker

I'm exporting shapes from a SWF file to SVG using JPEXS. The SWF contains many DefineShape tags. After exporting to SVG, the result has conflation artifacts (thin white gaps between adjacent shapes) when viewed in web browsers. Example of the issue: https://graphicdesign.stackexchange.com/questions/99156/white-space-between-objects-when-e xporting-to-svg-in-illustrator At first, I thought this was caused by JPEXS's SWF-to-SVG conversion. However, after investigating, it seems the problem comes from how Flash flattens vector shapes when the SWF is created, not from JPEXS itself. I also found this demo, which shows that different rendering engines rasterize the same vector data differently, and that browser renderers are among those that can produce these artifacts: https://w3.impa.br/~diego/projects/GanEtAl14/sample.html?contour The workarounds I found are: Add another path behind adjacent shapes, using the same color as one of them, to cover the gaps. This works but is impractical because I have a large number of DefineShape objects. Add a very small stroke (for example, 0.1px) with the same color as the fill. This hides the gaps, but it slightly enlarges the shapes, so it is not an ideal solution. My question is: Is there a better way to automatically eliminate these artifacts? One idea I had was to detect coincident edges between adjacent paths and perform boolean operations (such as merging or extending one of the paths) so there are no visible gaps. However, I think this would require knowing which path is in front of the other. If the original drawing order (z-order/depth) is not preserved, the algorithm could incorrectly cover parts of other shapes. Does an algorithm or existing tool already solve this problem? (by just editing the SVG, without having to patch the renderer)