We get device icons from gnome-volume-control, which itself may
get them from pulseaudio. That is, we don't have control over
whether icon names are symbolic.
As we do want menu items to use symbolic icons, enforce that
via CSS instead.
https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5805
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2456>
padding: $base_padding*2.75;
margin: 0 $base_padding*2.75;
+ .popup-menu-item > StIcon { -st-icon-style: symbolic; }
+
& .header {
spacing-rows: 0.5 * $base_padding;
spacing-columns: $base_padding*2;