`doxygen -u` doesn't set it to "TEXT" here but to "YES", not sure why.
Does it? Here it does set it to `TEXT` as it warns about, Doxygen 1.9.4.
1.9.4 here as well. With current master it does change it to `TEXT`, with the changes of this PR it will stay at `YES`.
Is the complaint new to a new version of doxygen? And if we change it will it break old versions?
I can't answer those questions without having a deep dive into doxygen for what I have not enough time and motivation, TBH. You know, we generate some API docs which 99% of the users will never read or even notice.
Having said this, I would keep the config mainly as is and just remove the two obsolete values.