Mismatched googleFontFamily global site variable

[levithomason]

The customizing page shows a snippet of code with a global site variable @googleFontFamily. We are running version 1.12.3 and I can only find these variables as a possible analog:

@importGoogleFonts : true;
@googleFontName    : 'Lato';
@googleFontSizes   : '400,700,400italic,700italic';
@googleSubset      : 'latin';

@googleProtocol    : 'https://';
@googleFontRequest : '@{googleFontName}:@{googleFontSizes}&subset=@{googleSubset}';

Not sure if I am mixing concerns here or if there is a conflict.