Replace Audio/Video icons with standard icons
There are redundant icons that prevents from Gajim to integrate natively with system icon themes.
/usr/share/gajim/icons/hicolor/16x16/actions/ there are specific "inactive" icons such as gajim-cam_inactive.png and gajim-mic_inactive.png.
Use GTK+ toolkit to indicate on inactivity or unavailability of features. Window Buttons of Xfce4-panel turns icons to semi-transparent icons when a window is minimized.
/actions/gajim-cam_active.png /actions/gajim-cam_inactive.png /actions/gajim-mic_active.png /actions/gajim-mic_inactive.png