This diff replaces many `"[font=` and `coloredText(...)`calls with the `setStringTags` function, which was intended for this purpose (rP20697/D1167) and requested in D2140 (actually on [[ http://irclogs.wildfiregames.com/2019-08/2019-08-02-QuakeNet-%230ad-dev.log | IRC ]] during discussion about D2140).
If this can be extended, please let me know.