Examine source code of Telescope CSS

{
  "manifest_version": 3,
  "name": "Telescope CSS",
  "description": "Modify CSS rules from any web by editing code in a complete and customizable text editor",
  "version": "1.0",
  "action": {
    "default_popup": "index.html"
  },
  "content_scripts": [
    {
      "js": [
        "assets/content.js-CWscXvsU.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "icons": {
    "16": "logo16.png",
    "32": "logo32.png",
    "48": "logo48.png",
    "128": "logo128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "telescopecss@tecnosamba.dev",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "web_accessible_resources": [
    {
      "matches": [
        "<all_urls>"
      ],
      "resources": [
        "assets/content.js-CWscXvsU.js"
      ],
      "use_dynamic_url": false
    }
  ]
}