Are there configuration settings for the toolpath display to change the colors?  I am classified as "low vision" and the black background of that display makes it almost impossible to see anything in the display.  I realize there is a way to programs screens but I am not familiar enough with Mach3 yet to be comfortable working with that.

Config menu then Toolpath.
Hood

Oh BTW dont try a white background as you will not see the toolpath.
Hood

Thanks!  Difficult to find things when your viasion is bad.

You will likely be best keeping the background dark and making the toolpath elements lighter as it will display best that way, assuming of course that is suitable for your vision.
Hood