> This addon append functions to the 3d view header as menus or button tools.
> The menu look can be adjusted directly in the addon preferences or in header
-> gear button: open the options for text and icons.
-> save user setting to apply the changes durably.
Thank you! I made a some new small changes:
> option ui: changed list buttons to check buttons
> add button to open custom layout in text editor (addon preferences)
> see first post
> !attention last final update is v1.3 (not 2.3)