Examine source code of Auto Collapse Tab Group

{
  "manifest_version": 2,
  "name": "Auto Collapse Tab Group After Select",
  "version": "1.2.0",
  "description": "切換到群組內的分頁後，自動將該群組折疊，保持分頁列整潔。",
  "author": "2ipm1nd",
  "browser_specific_settings": {
    "gecko": {
      "id": "{8c7499b7-fc5a-46f5-9d3b-c80fc1e9b3b7}",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "tabs",
    "tabGroups",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/favicon-16x16.png",
      "32": "icons/favicon-32x32.png",
      "48": "icons/icon48.png"
    },
    "default_title": "Auto Collapse Tab Group After Select",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "icons/favicon-16x16.png",
    "32": "icons/favicon-32x32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png"
  }
}