I'd recommend exporting your map as an image file and opening it in an image/photo editing program, as a "sepia" effect is pretty common. I don't believe that color manipulation like that is possible at the time of exporting in Pro, however, so this would probably need to be an additional step.
I'd recommend exporting your map as an image file and opening it in an image/photo editing program, as a "sepia" effect is pretty common. I don't believe that color manipulation like that is possible at the time of exporting in Pro, however, so this would probably need to be an additional step.