I’ve felt bad pointing OP to a script request without actually offering to make such a script. But you can now check out my attempt here
Note that it does not change the pink/purple of the kanji/vocab part of the review screen, mostly because that part of the screen does not indicate whether it’s a reading or meaning question. It should still be possible to alter that background color, but it requires more logic and messing with the layout (usually the less you mess, the more stable the script is upon changes to the main page).
I’m so used to the default wording and colors that this script really woke me up - but that won’t hold for more than a few review sessions. I won’t properly know if it does anything for my own confusion until much later.