Examine source code of Spaces

{
  "name": "Spaces",
  "description": "Intuitive tab management",
  "version": "1.1.10",
  "permissions": [
    "contextMenus",
    "history",
    "tabs",
    "storage",
    "unlimitedStorage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "spaces@thovthe",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "service_worker": "js/background/main.js",
    "scripts": [
      "js/background/main.js"
    ],
    "type": "module"
  },
  "action": {
    "default_title": "Spaces",
    "default_icon": "img/icon128.png",
    "default_popup": "popup.html"
  },
  "options_page": "spaces.html",
  "icons": {
    "16": "img/icon16.png",
    "32": "img/icon32.png",
    "48": "img/icon48.png",
    "128": "img/icon128.png"
  },
  "incognito": "not_allowed",
  "manifest_version": 3,
  "minimum_chrome_version": "88",
  "commands": {
    "spaces-move": {
      "description": "Move active tab",
      "suggested_key": {
        "default": "Ctrl+Shift+Period",
        "mac": "Command+Shift+Period"
      }
    },
    "spaces-switch": {
      "description": "Switch between spaces",
      "suggested_key": {
        "default": "Ctrl+Shift+Q",
        "mac": "Command+Shift+Q"
      }
    }
  }
}