Basically the goggles are "implied"- anything I do to emphasize there's something over the characters' eyes, tends to obscure or at least blur those eyes. I've experimented with coloring (both back in the B&W days and with recent colors) but generally speaking, anything obvious enough to get the "there's some glass there" point across, also obscures the eyes themselves.
And the eyes are the key to the characters' expressions and emotions. Not just in TWB, but for any character, whether it's Ripley from Aliens or Woody from Toy Story.
So basically, we have to assume that, if you see one of our players wearing a mask, that yes they are wearing proper goggles.
As for green, back in the day- ahem when I started playing- you basically had two choices for goggles; black or some variant of green or olive drab. My circa-1998 JT Spectras, when they were new, could be had in either those two colors, or a rare bright yellow or bright fucia, which were used as referee's masks.
It wasn't 'til the Flex-7s came out that you could start getting colors other than black or green.
I will, later, be giving the players more colorful outfits, but still, even today, most entry-level and even midrange goggles- the kind most renters and newbies will be using- are basically only available in black (which, by the way, looks wrong in the strip) or at best a few dark primaries like olive drab or navy blue.