meven accepted this revision. meven added a comment.
I can confirm the patch fix the issue. Tested with [General] font=Noto Sans,10,-1,5,50,0,0,0,0,0 in `.config/kdeglobals` With and without the patch, and the apply button now is highlighted when it the font setting was changed and the setting is saved and applied on `Apply` REPOSITORY R119 Plasma Desktop REVISION DETAIL https://phabricator.kde.org/D27384 To: bport, #plasma, broulik, ervin, crossi, meven, ngraham, davidedmundson, The-Feren-OS-Dev Cc: The-Feren-OS-Dev, plasma-devel, Orage, LeGast00n, cblack, jraleigh, zachus, fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart