This might be related to the recent changes in the seti-ui repo (cc @orta):

Repro:

1. Open settings.json file
2. 🐛 TypeScript icon appears (which is wrong, should be { } and it's significantly larger

Version: 1.37.0-insider
Commit: 4f3262d
Date: 2019-07-08T23:47:40.093Z
Electron: 4.2.5
Chrome: 69.0.3497.128
Node.js: 10.11.0
V8: 6.9.427.31-electron.0
OS: Darwin x64 18.6.0