Examine source code of Hot Tab

{
  "manifest_version": 3,
  "name": "Hot Tab",
  "version": "2.0.2",
  "description": "Move tabs easier",
  "icons": {
    "48": "icons/icon48.png"
  },
  "background": {
    "scripts": [
      "dist/shared.js",
      "dist/index.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{afcc7927-8549-4984-94fc-3de74ad3c23f}",
      "strict_min_version": "109.0"
    }
  },
  "permissions": [
    "contextMenus"
  ],
  "action": {
    "default_title": "Hot Tab",
    "default_popup": "popup.html",
    "default_icon": "icons/icon128.png"
  },
  "commands": {
    "move-left": {
      "suggested_key": {
        "default": "Ctrl+Shift+Left"
      },
      "description": "Move Tab Left"
    },
    "move-right": {
      "suggested_key": {
        "default": "Ctrl+Shift+Right"
      },
      "description": "Move tab right"
    },
    "pin-tab": {
      "suggested_key": {
        "default": "Ctrl+Shift+Down"
      },
      "description": "Toggle pin current tab"
    },
    "close-other-tabs": {
      "suggested_key": {
        "default": "Ctrl+Shift+K"
      },
      "description": "Close other tabs"
    }
  }
}