Minor UI Improvements

[Amphitryon0]

This is a lot of commits, but most are pretty small, and many change behavior only in exceptional cases.

Note: if possible, before merging, make sure this compiles with gcc. There are no warnings in MSVC, but that doesn't seem to mean much, and I don't have a linux environment at hand right now.

[Amaroq-Clearwater]

Request for review