When I export my font, the custom parameters for my corner are not exporting.
I would use a “Replace Glyphs” parameter to switch in a rounded corner. That should work and gives more control.
Thanks! I’ll do that instead. I was being too clever.
Filter kicks in after decomposition. Perhaps
PreFilter would work instead. But I would still go with Georg’s suggestion.
I tried PreFilter and it didn’t work, either.