If you really want to read things faster than key signatures, there are a bunch of music books you can buy where everything is transcribed to C.
Anyway, that's kind of all the point of just typing in the scale degrees in Warp... not having to worry about what notes are in what scale, and being able to quickly "draw" out the pattern, which is problematic in most DAWs.
The Roman numeral analysis is somewhat related to https://en.wikipedia.org/wiki/Nashville_Number_System
If you really want to read things faster than key signatures, there are a bunch of music books you can buy where everything is transcribed to C.
Anyway, that's kind of all the point of just typing in the scale degrees in Warp... not having to worry about what notes are in what scale, and being able to quickly "draw" out the pattern, which is problematic in most DAWs.