Deemphasizing

From Fedora’s GNOME 3 feature page: Where has the appearance capplet gone? GNOME 3 is deemphasizing user customization, or ‘theming’ in favour of a ‘just works’ and ‘slick out of the box’ approach. Therefore, theme changes are no longer exposed in the core configuration UI, except for accessibility themes such as ‘High Contrast’ or ‘Inverse’, …