With the previous commit brush assets are now well supported, and can be enabled by default (not disabled anymore by the "Extended Asset Browser" experimental feature). In fact this commit only enables displaying them in the asset browser and using normal asset operators on brushes. Part of the brush assets project, see: - https://projects.blender.org/blender/blender/issues/116337 - https://projects.blender.org/blender/blender/pulls/106303