There is another problem, simply based on visuals. Some people have trouble finding the translation icon.
I had the same problem, had to search for a while, principally because the buttons are all dark grey. In user interface design, gray and especially dark gray is universally associated with inactive items. Naturally, I was looking for a working button so I overlooked the dark gray icon several times.
Professionally, I have been creating user interfaces for cars for 20 years now, so I think I can claim that the argument it is more than just my personal taste. The selection of dark gray here is very unfortunate and intuitively misleading.
Is there a different default skin available that does show active buttons as disabled?