@a3rev
Hi Steve, just submitted the pull request.
I also noticed that the validation for the keys in admin settings uses the google fonts api for the validation test, but this may be different from the maps api key, or not used at all. Not a problem to solve by adding the fonts api into the allowed apis for the key in question, but the ‘invalid api key’ error could be confusing for users (I know it confused me initially!;)
Cheers,
Will