Examine source code of NZB Unity

{
  "manifest_version": 2,
  "name": "nzbunity",
  "description": "Send and control NZB files directly with SABnzbd or NZBGet download clients.",
  "version": "2.1.3",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "128": "icon/128.png"
  },
  "permissions": [
    "activeTab",
    "notifications",
    "scripting",
    "storage",
    "tabs",
    "webRequest"
  ],
  "commands": {
    "_execute_action": {
      "description": "Open the popup",
      "suggested_key": {
        "default": "Alt+Shift+U"
      }
    },
    "toggle-queue": {
      "description": "Toggle queue"
    },
    "open-web-ui": {
      "description": "Open downloader web UI"
    },
    "activate-newznab": {
      "description": "Add 1-click actions to the current Newznab page",
      "suggested_key": {
        "default": "Alt+Shift+N"
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "NZB Unity",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.abnzb.com/*"
      ],
      "css": [
        "content-scripts/abnzb.css"
      ],
      "js": [
        "content-scripts/abnzb.js"
      ]
    },
    {
      "matches": [
        "*://*.althub.co.za/*"
      ],
      "css": [
        "content-scripts/althub.css"
      ],
      "js": [
        "content-scripts/althub.js"
      ]
    },
    {
      "matches": [
        "*://*.animetosho.org/*"
      ],
      "css": [
        "content-scripts/animetosho.css"
      ],
      "js": [
        "content-scripts/animetosho.js"
      ]
    },
    {
      "matches": [
        "*://*.binsearch.info/*"
      ],
      "css": [
        "content-scripts/binsearch.css"
      ],
      "js": [
        "content-scripts/binsearch.js"
      ]
    },
    {
      "matches": [
        "*://*.dognzb.cr/*"
      ],
      "css": [
        "content-scripts/dognzb.css"
      ],
      "js": [
        "content-scripts/dognzb.js"
      ]
    },
    {
      "matches": [
        "*://*.drunkenslug.com/*"
      ],
      "css": [
        "content-scripts/drunkenslug.css"
      ],
      "js": [
        "content-scripts/drunkenslug.js"
      ]
    },
    {
      "matches": [
        "*://*.gingadaddy.com/*"
      ],
      "css": [
        "content-scripts/gingadaddy.css"
      ],
      "js": [
        "content-scripts/gingadaddy.js"
      ]
    },
    {
      "matches": [
        "*://*.miatrix.com/*",
        "*://*.newz-complex.org/*",
        "*://*.ninjacentral.co.za/*",
        "*://*.nzbplanet.net/*",
        "*://*.oznzb.com/*"
      ],
      "css": [
        "content-scripts/newznab.css"
      ],
      "js": [
        "content-scripts/newznab.js"
      ]
    },
    {
      "matches": [
        "*://*.nzbfinder.ws/*"
      ],
      "css": [
        "content-scripts/nzbfinder.css"
      ],
      "js": [
        "content-scripts/nzbfinder.js"
      ]
    },
    {
      "matches": [
        "*://*.nzbgeek.info/*"
      ],
      "css": [
        "content-scripts/nzbgeek.css"
      ],
      "js": [
        "content-scripts/nzbgeek.js"
      ]
    },
    {
      "matches": [
        "*://*.nzbindex.com/*",
        "*://*.nzbindex.nl/*"
      ],
      "css": [
        "content-scripts/nzbindex.css"
      ],
      "js": [
        "content-scripts/nzbindex.js"
      ]
    },
    {
      "matches": [
        "*://*.nzbking.com/*"
      ],
      "css": [
        "content-scripts/nzbking.css"
      ],
      "js": [
        "content-scripts/nzbking.js"
      ]
    },
    {
      "matches": [
        "*://*.nzb.life/*",
        "*://*.nzb.su/*"
      ],
      "css": [
        "content-scripts/nzblife.css"
      ],
      "js": [
        "content-scripts/nzblife.js"
      ]
    },
    {
      "matches": [
        "*://*.omgwtfnzbs.org/*"
      ],
      "css": [
        "content-scripts/omgwtfnzbs.css"
      ],
      "js": [
        "content-scripts/omgwtfnzbs.js"
      ]
    },
    {
      "matches": [
        "*://*.tabula-rasa.pw/*"
      ],
      "css": [
        "content-scripts/tabularasa.css"
      ],
      "js": [
        "content-scripts/tabularasa.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{96586e48-b9a2-45dd-b1a1-54fa85a97c91}"
    }
  }
}