Thank you! Just fixed up #1.
#2 - not seeing this; maybe just not noticing what you mean?
#3: you're running with UI scaling, right? #3 is to be expected if that's the case and the UI scaling amount isn't 200%. Unfortunately the game doesn't support 720p so 1440p can't quite get to 200%...
Re #4, is there something specific you had in mind? It could be related to UI scaling (in which case the text needs brightening up in that specific case, or it could be a more general UI issue like some text being too dark regardless of scaling, so it'd help to know exactly what sort of thing you mean here.