Examine source code of Markdown Viewer Pro

{
  "manifest_version": 2,
  "name": "Markdown Viewer Pro",
  "version": "1.0.0",
  "description": "Full-featured markdown renderer. View .md files with syntax highlighting, dark/light themes, table of contents, and more. Works on local and web-hosted markdown files.",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "permissions": [
    "file:///*",
    "storage",
    "activeTab",
    "clipboardWrite"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "markdown-viewer-pro@extension",
      "strict_min_version": "149.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "file:///*",
        "*://*/*.md",
        "*://*/*.markdown",
        "*://*/*.mdown",
        "*://*/*.mkd",
        "*://*/*.mkdn"
      ],
      "js": [
        "lib/marked.min.js",
        "lib/highlight.min.js",
        "content/content.js"
      ],
      "css": [
        "content/content.css"
      ],
      "run_at": "document_end",
      "all_frames": false
    }
  ],
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "48": "icons/icon-48.png"
    },
    "default_title": "Markdown Viewer Pro"
  },
  "background": {
    "scripts": [
      "background/background.js"
    ],
    "persistent": false
  },
  "web_accessible_resources": [
    "lib/*"
  ]
}