Examine source code of SafeCast

{
  "manifest_version": 3,
  "name": "SafeCast",
  "version": "1.0.0",
  "description": "Blur or redact your private info on any page while you record demos and tutorials — by word, auto-detection, images, or one click.",
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "safecast@servikaki.dev",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png",
    "256": "icons/icon256.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "storage",
    "activeTab"
  ],
  "commands": {
    "toggle-safecast": {
      "suggested_key": {
        "default": "Ctrl+Shift+H",
        "mac": "Command+Shift+H"
      },
      "description": "Turn SafeCast on/off"
    }
  }
}