Can't see set up/config "Custom BAckground Gear Icon" add-on in dropdown toolbar

This add-on used to work, but when I relaunched Anki just today, the font color was black when it had previously been set to white. I went to configure the add-on, but it didn’t even show up on my toolbar. I made sure to have the latest version of Anki downloaded and the latest add-on version, but nothing helped. It actually does show up under “Anking” but no option to edit. Please help! I’ve restarted Anki, my laptop, deleted and redownloaded the add-ons. Does anyone have any troubleshooting tips? Sidenote: my heatmap looks weird.