Local USE flag

Packages describing “tray” as local USE flag

Package “tray” Flag Description
dev-libs/sway Enable support for StatusNotifierItem tray specification
lxqt-base/lxqt-panel Build tray plugin
media-sound/qmmp Build tray icon
media-sound/tuxguitar Adds an icon to the tray that controls midi playback.
net-news/liferea Enable support for Tray Icon (GNOME Classic) plugin that display a small system tray icon to hide/unhide Liferea