Originally reported at: https://forum.gnupg.org/t/bug-changing-font-size-for-categories-in-kleopatra-works-incorrectly/7542 (with screenshots)

In kleopatra, go to Settings->Configure Kleopatra...->Appearance->Certificate categories. Select "My certificates", chose "Set Font", and make a non-default selection.

Observations:

• The selected font is shown correctly within the settings dialog
• Certificates of the customized category are not shown with correct font settings in the certificate view:
  • The font family appears to be respected in all columns
  • Font style (bold/italic) is not respected at all, all columns rendered in regular style
  • Font size differs between columns: keyId and Fingerprint columns show a bit larger than the other columns, but not necessarily corresponding to selection
• Reverting to defaults shows correct results within the settings dialog, but the symptoms remain in the certificate view. To reset, you have to remove the font setting in [configdir]/libkleopatrarc

Symptoms differ somewhat depending on which certificate category is customized, but remain broken, overall.