Examine source code of GitHub Tweaks

{
  "manifest_version" : 2 ,
  "name" : "GitHub Tweaks",
  "version" : "1.6.1",
  "description" : "Adds a couple of small additions to the GitHub website.",
  "icons" : {
    "48" : "icons/github.svg",
    "96" : "icons/github.svg"
  },
  "content_scripts" : [
    {
      "matches" : [
        "*://*.github.com/*" 
      ],
      "js" : [
        "scripts/browser-polyfill.min.js" ,
        "scripts/content/copy-filename.js" ,
        "scripts/content/hide-all-annotations.js" ,
        "scripts/content/hide-notifications-icon.js" 
      ]
    }
  ],
  "background" : {
    "scripts" : [
      "scripts/browser-polyfill.min.js" ,
      "scripts/background/tab-update-event.js" 
    ]
  },
  "permissions" : [
    "*://github.com/*" ,
    "tabs" ,
    "webNavigation" ,
    "storage" 
  ],
  "web_accessible_resources" : [
    "html/clipboard-copy.html"
  ],
  "options_ui" : {
    "page": "html/options.html" ,
    "browser_style": true,
    "chrome_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "github-tweaks@woutuuur.com"
    }
  }
}