Font Localization for Google Fonts

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "version": "1.0.2",
  "name": "Font Localization for Google Fonts",
  "description": "Forces glyph rendering for a specific language in Google Fonts.",
  "icons": {
    "16": "img/icon-16.png",
    "48": "img/icon-48.png",
    "128": "img/icon-128.png"
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://fonts.google.com/*"
      ],
      "run_at": "document_start",
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup.html"
  }
}