Examine source code of Zen Math Snipper

{
  "manifest_version": 3,
  "name": "Zen Math Snipper",
  "version": "3.0",
  "description": "Isolate GATE questions, PDF regions, and math blocks with custom zen styling.",
  "author": "Harsha",
  "browser_specific_settings": {
    "gecko": {
      "id": "zensnipper@harshajaya.com",
      "strict_min_version": "109.0"
    }
  },
  "permissions": [
    "activeTab",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "content.css"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "action": {
    "default_title": "Activate Zen Snipper"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+M",
        "mac": "Alt+M"
      },
      "description": "Activate Zen Snipper"
    },
    "open-pdf-studio": {
      "suggested_key": {
        "default": "Alt+P",
        "mac": "Alt+P"
      },
      "description": "Open Zen GATE PDF Studio"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "zen-pdf.html",
        "zen-pdf.js",
        "zen-pdf.css",
        "lib/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}