Un comentaro en Digg:
"hm some people's comments on the actual article suggest that the bezel is made of aluminum. However, it is not. It is plastic. The outer shell is aluminum. It is not hard to make an LED shine through plastic. just cover the hole and you're done, given that the plastic might be a tad thinner in that specific spot."
Un comentario en Engadget:
"The aluminium in the MBP is covered by a thin plastic layer that emulates the metal appereance, that's how they do it."
Despues aqui hay una 'explicacion' donde no te explican nada:
http://nobi.com/nobilog/archives/001795.html
15" MacBook Pro w/Touch Bar, Quad Core i7 2.9GHz, 16GB RAM, 1TB SSD, Mac OS X High Sierra + 27" BenQ Display + Netgear X4S
iPhone X 256GB (White) + iPad Air LTE (White) + AirPods + AppleTV 4