Selected text color

[Daniel]

I suggest to apply "selected text" color to non-text elements like math 
and formatting characters, like new line etc.

I guess the intended use of a "selection text" color is there to make 
sure that the selected text is visible in the selection, given the 
"selection" (background) color. However, the same seems to hold for 
other elements like math and formatting characters. Hence my suggestion.

Daniel