Higher contrast for selection border?

[eepjr24]

I am nearly certain I am saying this wrong, but I would like to increase the contrast of the selection tool border. This could be by changing it's color or some other method. My eyes are not what they used to be and I sometimes have trouble telling if I have everything I want selected inside the selection area. To be clear, I am talking about the dashed black line that appears around the selection. Ideally I would be able to modify it for the paint brush tools as well, but that is a less serious issue for me generally and easier to fix.

In typical applications I would expect to find a properties window somewhere that I could modify these, but I have not been able to locate anything.

- Ernie