Examine source code of Desmos Unlocked

{
  "name": "Desmos Unlocked",
  "version": "1.1.2",
  "description": "Browser extension for better user control of the Desmos graphing calculator configuration",
  "permissions": [
    "https://*.desmos.com/*",
    "storage",
    "webRequest",
    "webRequestBlocking"
  ],
  "manifest_version": 2,
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "js": [
        "content.js"
      ],
      "matches": [
        "https://www.desmos.com/calculator*"
      ],
      "run_at": "document_idle"
    },
    {
      "js": [
        "preloadContent.js"
      ],
      "matches": [
        "https://www.desmos.com/calculator*"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "images/logo/16.png",
      "32": "images/logo/32.png",
      "48": "images/logo/48.png",
      "128": "images/logo/128.png"
    }
  },
  "icons": {
    "16": "images/logo/16.png",
    "32": "images/logo/32.png",
    "48": "images/logo/48.png",
    "128": "images/logo/128.png"
  },
  "web_accessible_resources": [
    "script.js",
    "preloadScript.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{43359c03-2c83-4d28-8982-00e011b097ee}"
    }
  }
}