How do I figure out which font file is chosen for a system generic font alias?
In Fedora 22, in KDE (plasma) System Settings -> Font -> Fonts, the setting for “General” is “Sans Serif 10”, for “Fixed width” is “Monospace 10”, for “small” is “Sans Serif 8”, for “Toolbar” is “Sans Serif 9”, for “Menu” is “Sans Serif 10”, and for “Window title” is “OxygenSans 10”.