Change group color on unsubscribe (on the groups page)

Perhaps the post was posted in the wrong place and can be moved or deleted. But it's not entirely clear.

There is a page: https://tildes.net/groups

Where is it written:

Group name colors: subscribed / not subscribed. You can change your subscription status to a group in its sidebar when you are viewing it directly.

I decided to experiment and unsubscribe from some groups. However, there are no changes on this page. Perhaps it’s just me or I’m doing something wrong.