Mailspring/app/internal_packages/custom-fonts/package.json

{
  "name": "custom-fonts",
  "version": "0.1.0",
  "main": "./lib/main",
  "description": "Custom Fonts",
  "license": "Proprietary",
  "private": true,
  "syncInit": true,
  "windowTypes": {
    "all": true
  },
  "engines": {
    "mailspring": "*"
  }
}