Examine source code of FlashMarks

{
  "manifest_version": 3,
  "name": "__MSG_extensionName__",
  "version": "0.1.0",
  "description": "__MSG_extensionDescription__",
  "default_locale": "en",
  "homepage_url": "https://github.com/olaftnt/FlashMarks",
  "author": "olaf.tnt@gmail.com",
  "icons": {
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "flashmarks@olaftnt",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "bookmarks",
    "tabs",
    "storage"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "__MSG_actionTitle__",
    "default_icon": {
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "commands": {
    "add-current-tab": {
      "suggested_key": {
        "default": "Ctrl+Alt+S",
        "mac": "Command+Alt+S"
      },
      "description": "Dodaj aktywną kartę do zakładek (Single)"
    },
    "add-current-window": {
      "suggested_key": {
        "default": "Ctrl+Alt+A",
        "mac": "Command+Alt+A"
      },
      "description": "Dodaj wszystkie karty z aktywnego okna (All)"
    },
    "remove-current-tab": {
      "suggested_key": {
        "default": "Ctrl+Alt+X",
        "mac": "Command+Alt+X"
      },
      "description": "Usuń wpisy aktywnej karty z wybranego folderu (X)"
    },
    "remove-current-window": {
      "suggested_key": {
        "default": "Ctrl+Alt+Z",
        "mac": "Command+Alt+Z"
      },
      "description": "Usuń wpisy wszystkich kart z aktywnego okna z wybranego folderu (Z)"
    }
  }
}