Examine source code of Scrape Similar

{
  "manifest_version": 3,
  "name": "Scrape Similar",
  "version": "1.0",
  "description": "Right-click an element to scrape similar elements based on XPath, or enter a custom XPath/selector in the sidebar.",
  "permissions": [
    "activeTab",
    "contextMenus",
    "scripting",
    "storage"
  ],
  "icons": {
    "48": "icons/icon-48.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "scrape@similar.org"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content_scripts/scraper.js"
      ],
      "run_at": "document_idle",
      "all_frames": true
    }
  ],
  "action": {
    "default_title": "Toggle Scrape Similar Sidebar"
  },
  "sidebar_action": {
    "default_panel": "sidebar/sidebar.html",
    "default_title": "Scrape Similar",
    "default_icon": {
      "48": "icons/icon-48.png"
    },
    "open_at_install": false
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+S",
        "mac": "Command+Shift+S"
      },
      "description": "Toggle Scrape Similar Sidebar"
    }
  }
}