Posted by ravas on Mar 31, 2017; 9:20pm
URL: https://forum.librecad.org/Problems-with-Librecad-in-new-18-1-Serena-tp5714757p5714760.html

That is the old CAD toolbar,
which I replaced with:
- dock widgets in the left dock area (hidden by default)
- a toolbar for each category
- the categories toolbar
- custom toolbars
- custom menus

http://wiki.librecad.org/index.php/User_Interface