Use dark mode avatars when dark mode is used.

[nickvergessen]

Android ref nextcloud/talk-android#2409

So when darkmode is on, you should load the avatar with /dark appended to the URL:
https://github.com/nextcloud/server/pull/33752/files#diff-4498c88983ae18872bd47b365d72a3604d1850596ea052d36da8bb7ad28f207eR48

[SystemKeeper]

Currently the avatars are cached by the lib, need to make sure we invalidate the cache if the appearance changes

[nickvergessen]

or use 2 different cache keys. $userId and $userId/dark since / can not appear in user ids

[SystemKeeper]

Yes, I’ll take a look. Might not be a problem afterall, because the url is the key 🧐

[Ivansss]

Since the urls are different there should not be an issue with the cache.
But we might need to refresh (e.g. RoomsTablewView) if there is an appearce change.

[SystemKeeper]

I don't see a capability or a backport - so we check for NC 25 when doing this?

[Ivansss]

so we check for NC 25 when doing this?

Right! What would be the best way to proceed here @nickvergessen ?
I guess that's the only possible check we can do at the moment, right?

[nickvergessen]

Yeah, it's a server thing and server people are not used to capabilities (yet).
So yeah can you check the server version?

[SystemKeeper]

Yep, we store the server version already, so that should be pretty easy to do 👍