KDE, and Ubuntu generally, needs some way to specify fonts that works in all, or at least almost all, contexts. I find it very frustrating that my font settings in System Settings are constantly being overridden, and I don't even know how the font size is being determined. The browser sometimes has a hand in this, but it's not the only agent. For example that's close to home, how can I control the font used to display the pages in docs.kde.org?