I can't for the life of me find the name of the text string that corresponds to the border of the breakpoint statement that turns visible as soon as you highlight that row. I've tried with search strings such as "breakpoint" and "highlight" in the Theme Editor but haven't been successful yet.
I want to change the color of this border:
Actually I want to remove it completely, as I find it pretty annoying (make the color transparent).
If you mean to change the border of the selected text when there's a breakpoint you should be able to do that on
Options->Envoriment->Fonts and Colors>Show settings for: Text Editor, and then scroll down and change the value of
Breakpoint-Selected, but it doesn't change anything. Probably its a bug.