Brief

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Brief",
  "description": "Keep emails brief with this email-centric word counter.",
  "version": "1.1.0",
  "author": "Safia Abdalla",
  "homepage_url": "http://safia.rocks/brief/",
  "icons": {
    "16": "docs/images/brief16.png",
    "48": "docs/images/brief48.png",
    "128": "docs/images/brief128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://mail.google.com/mail/*"
      ],
      "js": [
        "scripts/jquery.min.js",
        "scripts/index.js"
      ],
      "css": [
        "styles/style.css"
      ],
      "run_at": "document_idle"
    }
  ]
}