github/linguist — pull request #1900 by dalehenrich (2014-12-19 05:24:26+00:00)
Title: Use source.smalltalk to hightlight STON file

While not perfect, it turns out that source.smalltalk is a better fit for highlighting STON files than source.json. When STON departs from pure JSON (often) the hightlighting is pretty bad.