Nick Anderson posted a comment on ticket #31

The icon is also nearly invisible (within the taskbar tray ) when the mic is in muted mode. I would recommend using the same red mic icon (seen in the taskbar tray when mic is enabled) and just create a black "slash" going thru it when disabled. A similar "color" choice could be used as you default icons when displayed in the task bar. Currently,( on Windows 10 anyway) you can just barely make out the silhouette with the black mic on a nearly black taskbar background.