2 issues with using multireddits

[desbest]

Missing features

• There should be a "add to multireddit" option on the context menu of the subreddit, so I can add a subreddit to a multireddit while I'm currently viewing a specific subreddit's (newly recent) post listing.

Usability issues

• Subreddits I add to a multiReddit should be a different colour, so I can know what I recently added. This is useful if I'm adding 25+ multireddits at once.