Examine source code of Quoted Replies

{
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "browser_action": {
    "default_title": "Quoted Replies"
  },
  "content_scripts": [
    {
      "js": [
        "scripts/index.js"
      ],
      "matches": [
        "https://*.twitter.com/*"
      ],
      "run_at": "document_end"
    }
  ],
  "description": "View the quoted replies for a Tweet.",
  "icons": {
    "48": "icons/logo.png"
  },
  "manifest_version": 2,
  "name": "Quoted Replies",
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "permissions": [
    "https://*.twitter.com/*",
    "storage"
  ],
  "short_name": "Quoted Replies",
  "version": "0.0.3.1",
  "web_accessible_resources": [
    "icons/quoted_replies.png"
  ]
}