- Rename ui_but_find_active_in_region -> ui_region_find_active_but - Remove ui_but_is_active (use ui_region_find_active_but instead) - Re-order ui_but_* functions take the button as their first arg.
- Rename ui_but_find_active_in_region -> ui_region_find_active_but - Remove ui_but_is_active (use ui_region_find_active_but instead) - Re-order ui_but_* functions take the button as their first arg.