Examine source code of DSA2 Dashboard

{
  "manifest_version": 2,
  "name": "DSA2 Dashboard",
  "version": "1.1.5",
  "browser_specific_settings": {
    "gecko": {
      "id": "bogdodan@dsa2dashboard",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "lib/jquery.min.js",
      "lib/lovefield.min.js",
      "lib/papaparse.min.js",
      "schema.js",
      "utils.js",
      "idletime.js",
      "background.js"
    ],
    "persistent": true
  },
  "permissions": [
    "storage",
    "alarms",
    "tabs",
    "tabHide",
    "https://*.amazon.com/*",
    "https://*.amazon.dev/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://rodeo-dub.amazon.com/DSA2/*"
      ],
      "all_frames": true,
      "run_at": "document_end",
      "js": [
        "lib/jquery.min.js",
        "ExSD.js"
      ]
    },
    {
      "matches": [
        "https://fans-dub.amazon.com/*"
      ],
      "all_frames": true,
      "run_at": "document_end",
      "js": [
        "fans.js"
      ]
    }
  ],
  "browser_action": {
    "browser_style": true,
    "default_popup": "options.html"
  },
  "icons": {
    "64": "icons/icon64.png"
  }
}