Examine source code of Copy LaTeX 2

{
  "manifest_version": 3,
  "name": "Copy LaTeX (KaTeX & MathJax & Wikipedia Imgs)",
  "version": "1.3.0",
  "description": "Hover and click to copy LaTeX expressions on ChatGPT, DeepSeek, Wikipedia, Stack Exchange and other math-related websites.",
  "icons": {
    "48": "assets/icon48.png"
  },
  "permissions": [
    "storage"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "assets/icon48.png"
    },
    "default_title": "Copy LaTeX"
  },
  "host_permissions": [
    "https://chatgpt.com/*",
    "https://chat.deepseek.com/*",
    "https://math.stackexchange.com/*",
    "https://physics.stackexchange.com/*",
    "https://proofwiki.org/*",
    "https://*.notion.site/*",
    "https://www.notion.so/*",
    "https://*.wikipedia.org/*",
    "https://www.wikiwand.com/*",
    "https://wikimedia.org/*",
    "https://*.wikiversity.org/*",
    "https://*.wikibooks.org/*",
    "https://mathoverflow.net/*",
    "https://publish.obsidian.md/*",
    "https://nbviewer.org/*",
    "https://www.phind.com/*",
    "https://chat.mistral.ai/*",
    "https://librechat-librechat.hf.space/*",
    "https://www.perplexity.ai/*",
    "https://phys.libretexts.org/*"
  ],
  "optional_host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "overlay.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "mathjax-inject.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "copy-latex@leander-ow",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}