The warning only said it is changed because `CLASS_DIAGRAM` were set before, right?
I guess so, yeah.
`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.
I don't mind how we proceed, I'm no doxygen expert at all.
Me neither, I was just wondering if it wouldn't start adding broken graphs everywhere, but I didn't test :)