The netstatus plugin still uses the old gnome-netstatus-* icon names. These icon names have been depricated for a very long time, and the names from the [FreeDesktop.org Icon Naming Specification] (https://specifications.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html) would be better to use. Most icon themes will have the FD.o names and not the gnome- prefixed names.
Issue reported to debian bug tracker here.
The netstatus plugin still uses the old
gnome-netstatus-*
icon names. These icon names have been depricated for a very long time, and the names from the [FreeDesktop.org Icon Naming Specification] (https://specifications.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html) would be better to use. Most icon themes will have the FD.o names and not thegnome-
prefixed names.FD.o names include:
network-wired network-wireless network-error network-idle network-offline network-receive network-transmit network-transmit-receive
Not part of FD.o but widely used (are in KDE's Breeze and Gnome's Adwaita icon themes):
network-wireless-signal-none network-wireless-signal-weak network-wireless-signal-ok network-wireless-signal-good network-wireless-signal-excellent
A quick grep shows where the names are used. It may be as simple as switching the icon names.