I was going through list (the first post)...
I changed some of the settings and some other things in the system menu, but somewhere for some reason, the font of most applications changed, and now they seem thinner and don't seem to render correctly:
I went through what I think was all the options I changed and can't seem to bring back the correct/better rendering.
I didn't change anything in the font management.
In the application appearance > style > Fine tuning
I now have it set to high resolution high cpu, but it doesn't help.
In the dektop effects > All effects
menu, there doesn't seem to be anything related.
Workspace appearance
is untouched.
I'm not sure what could it be.
In Application Appearance > Fonts, is
Use anti-aliasing
set toSystem Settings
? If so, try changing it to enabled. You might also want to tweak the settings under Configure: RGB sub-pixel rendering with Slight hinting work well for me but YMMV.https://bugs.kde.org/show_bug.cgi?id=326971
scroll down, it has an answer -- you have to delete
/home/(your_name)/.config/fontconfig/fonts.conf
.