I think that’s related to a discussion at GitHub [IDEA] Enable listing of all controlpanel settings · Issue #7117 · Jermolene/TiddlyWiki5 · GitHub
The main problem with the Control Panel is, that all the elements and texts are translatable. So there needs to be a mechanism to find the text within “language-tiddlers” and match them to the tabs in the panel.
Which is related to Are "hint tiddlers" always titled like this?