I spotted some warnings when I upgraded from Doxygen 1.18.13 to 1.18.17.
The new warnings are useful, they point out imbalances in grouping, as
well as unclosed comment blocks. Coincidentally, this fixes #13338
* Add \since directive to each method.
* Add documentation for BScrollBar and BScrollView classes.
* Title Case group titles.
* Some other minor documentation updates.