Guys, I have my new 15" rMBP Touchbar. The touchbar itself seems quite dark/dull?? I assume they are maybe all like that - but wondering if there is any way to turn up the brightness on the Touchbar itself? I think the tiny thumbnails of the web pages you have open on Safari are bit pointless to be honest. They are so small and dull that its very difficult to differentiate one from the other.