Error while processing signal 'NewIconThemePath', icon renders as 3 dots

[stuarthayhurst]

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Plenty of other "icon shows as 3 dots" type bugs, but I can't see this backtrace in any of them, so I've opened a new issue.

Upon starting Discord, I get the following backtrack in journalctl and its tray icon appears as 3 dots.

Nov 07 11:37:25 snakeroot gnome-shell[2312]: Error while processing signal 'NewIconThemePath': Error: Invalid value 'undefined' for property parent in object initializer.
                                             
                                             Stack trace:
                                               _init@file:///home/ratus5/.local/share/gnome-shell/extensions/[email protected]/util.js:405:15
                                               CancellableChild@file:///home/ratus5/.local/share/gnome-shell/extensions/[email protected]/util.js:400:1
                                               _cancelRefreshProperties@file:///home/ratus5/.local/share/gnome-shell/extensions/[email protected]/appIndicator.js:385:31
                                               _queuePropertyUpdate@file:///home/ratus5/.local/share/gnome-shell/extensions/[email protected]/appIndicator.js:349:43
                                               _onSignalAsync@file:///home/ratus5/.local/share/gnome-shell/extensions/[email protected]/appIndicator.js:225:28
                                               _onSignal@file:///home/ratus5/.local/share/gnome-shell/extensions/[email protected]/appIndicator.js:204:14
                                               _init/<@file:///home/ratus5/.local/share/gnome-shell/extensions/[email protected]/dbusProxy.js:40:43
                                               @resource:///org/gnome/shell/ui/init.js:21:20

I'm running Debian Sid with GNOME 49.1 (Wayland) and version 61 of this extension.

Let me know if you need anything else, I'm more than happy to test fixes :)