Getpos prompts (when you can move the cursor around for things like jumping or centering a stinking cloud) highlight the path from you to your cursor if that’s a meaningful thing for its use. Meaningful uses include jumping (highlight a straight-line path from you to the destination) or _ travel (highlight the path that you would travel along).

Highlighting could possibly be done by changing the glyph shown, but would probably be better off inverting the foreground and background colors.