Examine source code of Dino Chrome Multiverse

{
  "manifest_version": 2,
  "name": "Dino Chrome Multiverse",
  "version": "1.1.1",
  "description": "Play Dino Chrome Multiverse with themes, share scores, view tips, track records, and more — right from your browser!",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://chromedino.com/*"
  ],
  "options_page": "options.html",
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+Y"
      },
      "description": "Open Dino Chrome popup"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "dino@chromedino.com",
      "strict_min_version": "109.0"
    }
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_popup": "popup.html"
  }
}