I’m developing an addon similar to the Make Planar Faces operator already available in Blender. The user selects a vertex, which will be moved (along selected directions) in order to make all connected faces as planar as possible. It would be nice to let the user set some parameters for specific connected faces, eg, the weight of the ‘planarness’ of that face. It obviously needs to be clear which face the user is setting the parameters for, so you might want something like this:
It looks a bit like what you get when you tell Blender to display the area of the selected faces. Is this possible in a custom operator? Any examples I could check? TIA!