Customizing "View Results"

Hi all,

I'm creating a course and have added the option of the learner to review the quiz when finished. This works fine, but the checkmark icon and the text box at the bottom don't match my course design. Is there any way of replacing the checkmark icons with a different icon and change the colour/font of the text box at the bottom? (the colour contrast of the white text on green is 3.49 which doesn't hit the 4.5 that is needed for WCAG)

I have been searching through other threads and have only seen the option to hide the icons (in the quiz settings) and to hide the bar at the bottom with a shape that's the same colour as the background.

Has there been an update in the system with this option, or is this an enhancement request?