Examine source code of MD Capture

{
  "manifest_version": 2,
  "name": "__MSG_name__",
  "version": "1.0.0",
  "description": "__MSG_description__",
  "default_locale": "zh_CN",
  "permissions": [
    "activeTab",
    "contextMenus",
    "clipboardWrite",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_title": "__MSG_actionTitle__",
    "default_icon": "assets/icon.svg"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "commands": {
    "capture": {
      "suggested_key": {
        "default": "Ctrl+Shift+M"
      },
      "description": "__MSG_commandCapture__"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/index.js"
      ],
      "css": [
        "content/style.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "icons": {
    "48": "assets/icon.svg",
    "96": "assets/icon.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "mdc@md-capture.example",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "web_accessible_resources": [
    "assets/icon.svg"
  ]
}