User popout background images are no longer working

[quincynyan]

I've set

--small-user-popout-background-image: url('https://i.imgur.com/v1ODdsv.gif');
--small-user-popout-background-transparency: #00000099;
--small-user-popout-background-image-position: center;
--big-user-popout-background-image: url('https://i.imgur.com/BXr6I0G.gif');
--big-user-popout-background-transparency: #00000099;
--big-user-popout-background-image-position: center;

in :root but they're not showing up in discord.

It looks like the theme uses .userPopout-2j1gM4 and .root-8LYsGj which are not in the latest Discord version anymore.