The RedReader developer (QuantumBadger) said they’d like to make it a more general reader app and include support for RSS and Lemmy. It would take a while to to it though. They would have to abstract a lot of the Reddit specific code.
I hope they do it, it’s a really nice app.
It’s called Title Case. There are different rules depending on which style manual you’re using. Some people just capitalise everything. Some people don’t use it at all.