10fastfingers.com

My accuracy used to be in the range of probably around 98-85, now it's more like 85-75 and it's making my wpm much slower. This has happened before and then I woke up and just suddenly improved somehow. Now somehow this is happening again and I don't no how to stop it

I've noticed that some people like to have 10ff on other colours and I was wondering on how I could change the colour of 10fastfingers colour.
Been wanting to know this for a while just because the bright colours are heavy on your eyes and it would also look more visually appealing