Examine source code of Tab Highlighter

{
  "manifest_version": 3,
  "name": "Tab Highlighter: Github Tab Colorizer",
  "homepage_url": "https://github.com/nihaltp/tab_highlighter",
  "version": "1.2.2",
  "description": "Highlight your GitHub tabs with custom colors for better organization.",
  "author": "Nihal T P",
  "developer": {
    "name": "Nihal T P",
    "url": "https://github.com/nihaltp"
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png",
    "128": "icons/icon128.png",
    "256": "icons/icon256.png"
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://github.com/*",
    "https://www.github.com/*"
  ],
  "action": {
    "default_title": "Tab Highlighter",
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "96": "icons/icon96.png",
      "128": "icons/icon128.png",
      "256": "icons/icon256.png"
    },
    "default_popup": "src/popup/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://github.com/*",
        "https://www.github.com/*"
      ],
      "js": [
        "src/content/content.js"
      ],
      "css": [
        "src/content/content.css"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "src/content/content.css"
      ],
      "matches": [
        "https://www.github.com/*",
        "https://github.com/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "tab-highlighter@nihaltp",
      "strict_min_version": "110.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}