Yes, some­times I think a fea­ture is much hard­er than it re­al­ly is.

So, since re­vi­sion 571, ev­ery once in a while a new fav­i­con will ap­pear in your feed tree when you use uRSSus. No, they won't all ap­pear at once. They will ap­pear when­ev­er:

1. You ac­­tu­al­­ly fetched new posts from a feed

2. You restart the app

Once they ap­pear they will nev­er change, ei­ther.