The rubber/vinyl can be removed easily with isopropyl alcohol and and a magic eraser (melamine sponge) and a cloth. This leaves the end plates looking like the MicroBrute which is just hard plastic and it looks fine. Pour 75%-95% isopropyl alcohol on the magic eraser and scrub. The alcohol breaks down the rubber. Then wipe away the alcohol and rubber mess with a dry micro fiber cloth. Repeat until it’s all gone and even looking. It comes off easily.
Be aware the alcohol will turn the rubber parts sticky if they were not before, so if you start, you have to finish the job. It also works on knobs and buttons. The rubber layer is very thin. Just watch out for the small little plastic inserts on the slider caps. (The horizontal grey line) They can fall out and you have to glue them back in if you care.
Don’t pour the alcohol on the Brute directly. Although you can use it to clean electronics it’s better to keep it controlled and neat.
Only do this if the parts are sticky. Otherwise you will make them sticky and have to do this process until completion.
As a final step, buff it with a dry microfiber cloth to make it nice and even.
This works because the alcohol breaks down the rubber and lubricates the magic eraser which acts as a fine abrasive and then the dry cloth wipes away the residue.
