@KevinDietrich Please do. Also I found that there is no new() method in: C.active_object.data.vertex_creases.new()
thus we cant set vert creases, like its shown in second post, - blender will error with :
Compare to vertex_colors where where have new() method:
But with bmesh custom crease data layer, I guess it wont matter (we will be able to create crease with bm.verts.layers.crease.new() right? )
Awesome will test is ASAP. It would be great if, for consistency with vert color, you could add mesh.vert_crease. mesh.vert_creases has foreach_set, and get methods which may be usefull for fast crease access.