Examine source code of Simple Dredark Tools (drednot.io)

{
  "browser_specific_settings": {
    "gecko": {
      "id": "simpledredarktools@blueyescat.com",
      "strict_min_version": "58.0"
    }
  },
  "name": "Simple Dredark Tools (drednot.io)",
  "version": "1.8.0",
  "description": "An extension for some tools in the Deep Space Airships (drednot.io) game.",
  "author": "Blueyescat <blueyescat123@gmail.com>",
  "permissions": [
    "storage"
  ],
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    "styles/content.css",
    "sfx/beep.mp3",
    "scripts/webpage.js"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.drednot.io/*"
      ],
      "js": [
        "lib/jquery/jquery-3.6.0.min.js",
        "lib/msgpackjs/msgpack.min.js",
        "scripts/content.js"
      ],
      "css": [
        "styles/content.css"
      ],
      "all_frames": true
    },
    {
      "matches": [
        "*://*.drednot.io/*"
      ],
      "js": [
        "scripts/document_start.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "32": "images/dredark-icon.png"
    }
  },
  "icons": {
    "16": "images/dredark-icon.png",
    "32": "images/dredark-icon.png",
    "48": "images/dredark-icon.png",
    "128": "images/dredark-icon.png"
  },
  "manifest_version": 2
}