Typography Inspector

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Typography Inspector",
  "description": "Typography Inspector analyses the typography on your site and helps you improve it.",
  "manifest_version": 2,
  "version": "1.0.1",
  "permissions": [
    "activeTab"
  ],
  "background": {
    "scripts": [
      "src/background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_title": "Analyse this typography on this page",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "icons/16x16.png",
    "32": "icons/32x32.png",
    "48": "icons/48x48.png",
    "128": "icons/128x128.png"
  }
}