FYI (if you think my help post above is somewhat offensive)
I tried to help not as a solution to the issue, but so you can complete your quest before/if they implement a fix.
If you know it's a color based puzzle and yet you attempt to solve it, it's more than overcoming a game challenge. It's overcoming a life challenge and it's something wonderful.
Not everything in real life is "designed" to color blinds or lefties or dexterous, and someone who's trying to help you to overcome it or make it easier for you is not an offender. If you rather doing it all alone as a personal challenge, then maybe fixing is not a good solution as it's "helping" in some way.
About the puzzle in rainbow: What if it had no color from start and you had to step on the plates a certain number of times in a certain order?
Think about it.