It's been 84 years, but the polygon generator not only works, but now has bezier support. The UI could still use some work, but this was the hardest part. I guess complex masking should be possible now, if perhaps slightly cumbersome until the UI is smoothed out.
The macro defined namespaces confused the hell out of lupdate and more or less broke translations permanently. Looks like the only way we can do it is to have a hardcoded namespace, which goes against my instinct, but honestly how likely is it that we'll change the namespace anyway (I guess forks might want to do it, but that's their problem ;) )
itsmattkc