Currently you can only change the font of the header but not the actual text. I think you should be able to also change the text font in the printing dialogue so you don't have to change the actual editor font every time you want to print something. SOFTWARE/OS VERSIONS KDE Plasma Version: 5.25.3 KDE Frameworks Version: 5.96.0 Qt Version: 5.15.5
A possibly relevant merge request was started @ https://invent.kde.org/frameworks/ktexteditor/-/merge_requests/401
Git commit 5df38c306c168804fbfdba0c1f97b7986c94f89d by Christoph Cullmann. Committed on 12/08/2022 at 19:16. Pushed by cullmann into branch 'master'. allow to configure printing font before this was part of the theme M +1 -0 src/printing/kateprinter.cpp M +34 -1 src/printing/printconfigwidgets.cpp M +5 -0 src/printing/printconfigwidgets.h M +5 -0 src/printing/printpainter.cpp M +1 -0 src/printing/printpainter.h https://invent.kde.org/frameworks/ktexteditor/commit/5df38c306c168804fbfdba0c1f97b7986c94f89d