Add option to hide blue lines when editing a vector

Hey!

When editing vectors, diagonal blue lines appear. I know this is intended behavior, but in some people (including me) these lines make them physically sick. As for me, I had terrible nausea after ~ 5 min of editing vectors, and my eyes still haven’t gone back to normal while writing this ( ~ 3 min later).

An option to disable these lines, just like there’s an option to disable the pixel grid, would be great.

Thanks.