Add GNOME support

Packages describing “gnome” as local USE flag

Package “gnome” Flag Description
x11-misc/mugshot Add support for gnome-base/gnome-control-center
net-libs/libproxy Enable support for reading proxy settings from GNOME
media-sound/qmmp Enable Gnome hotkey support (requires Qt5DBus)
net-libs/gnome-online-accounts Use gnome-base/gnome-control-center to set GNOME online accounts preferences
net-libs/glib-networking Extract HTTP/HTTPS/SOCKS proxy configuration stored using GSettings
x11-misc/gpaste Enable proper gnome support and enable gnome shell extension.

All packages providing a “gnome” USE flag (25)