Examine source code of Funkify - Disability Simulator

{
  "manifest_version": 3,
  "name": "Funkify - Disability Simulator",
  "version": "2.0.9",
  "description": "Experience the web through different abilities. Simulate vision, motor, cognitive and reading impairments.",
  "author": "Funkify Team",
  "homepage_url": "https://www.funkify.se",
  "icons": {
    "16": "assets/icons/icon-16.png",
    "48": "assets/icons/icon-48.png",
    "128": "assets/icons/icon-128.png"
  },
  "action": {
    "default_popup": "ui/popup/popup.html",
    "default_icon": {
      "16": "assets/icons/icon-16.png",
      "48": "assets/icons/icon-48.png",
      "128": "assets/icons/icon-128.png"
    },
    "default_title": "Funkify - Disability Simulator"
  },
  "background": {
    "scripts": [
      "core/background/index.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "core/content/index.js"
      ],
      "css": [],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "webNavigation"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "options_ui": {
    "page": "ui/options/index.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    {
      "resources": [
        "simulators/**/*.js",
        "simulators/**/*.css",
        "simulators/**/*.mp3",
        "simulators/**/*.mp4",
        "simulators/**/*.png",
        "simulators/**/*.jpg",
        "assets/**/*",
        "data/**/*.js",
        "libs/axe-core/*.js",
        "ui/media-player/media-player.html",
        "ui/media-player/media-player.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'none'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "funkify-disability-simulator@funkify.se",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "personallyIdentifyingInfo"
        ]
      }
    }
  }
}