Examine source code of Minimal LinkedIn

{
  "name": "Minimal Theme for LinkedIn",
  "description": "Minimal Theme for LinkedIn",
  "version": "3.3.0",
  "manifest_version": 3,
  "icons": {
    "128": "images/icon.png"
  },
  "sandbox": {
    "pages": [
      "pages/config.html"
    ]
  },
  "content_scripts": [
    {
      "run_at": "document_end",
      "matches": [
        "https://*.linkedin.com/*"
      ],
      "js": [
        "js/handlers.js",
        "js/main.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "css/minimal.css",
        "pages/config.html",
        "partials/nav.html",
        "partials/config-shortcut.html",
        "images/icon.svg",
        "images/icon-settings.svg",
        "images/nav-home.svg",
        "images/nav-network.svg",
        "images/nav-jobs.svg",
        "images/nav-messages.svg",
        "images/nav-notifications.svg"
      ],
      "matches": [
        "https://*.linkedin.com/*"
      ]
    }
  ],
  "permissions": [
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "*://*.linkedin.com/*"
  ],
  "action": {
    "default_icon": "images/icon.png",
    "default_popup": "pages/index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "minimal-linkedin@minimallinkedin.com",
      "strict_min_version": "109.0"
    }
  }
}