Currently the profiling requires (implicitly) that the profiling curves are monotone in x. This should be extended so that non-x monotone curves are allowed as well. This can always be done by splitting a non-x monotone curve into multiple x monotone curves. Use case: Let's say we want to embed an emitting light with a circular cross section the periphery of the font. Currently this can not be done.
This issue appears to be discussing a feature request or bug report related to the repository. Based on the content, it seems to be still under discussion. The issue was opened by dov and has received 0 comments.