Examine source code of Npm to GitHub

{
  "name": "Npm to GitHub",
  "version": "1.0.3resigned1",
  "manifest_version": 2,
  "description": "Redirect npm to github",
  "author": "@marco_fugaro",
  "homepage_url": "https://github.com/marcofugaro/npm-to-github",
  "icons": {
    "128": "images/icon.png"
  },
  "options_ui": {
    "chrome_style": true,
    "page": "options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*"
      ],
      "include_globs": [
        "https://www.google.*/*"
      ],
      "run_at": "document_end",
      "js": [
        "content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "tabs",
    "storage",
    "https://registry.npmjs.org/*",
    "https://www.npmjs.com/package/*"
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{6ffa9d1b-e728-4dd2-bdbb-c6fd39a84bf7}"
    }
  }
}