Examine source code of Leiden Search Assistant

{
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "{e82d2a20-be1a-439e-97d8-ee1569b40352}",
      "strict_min_version": "109.0"
    }
  },
  "name": "Leiden Search Assistant",
  "description": "Search the Leiden University Libraries Catalogue at any moment, without leaving your current page!",
  "version": "2026.5.27",
  "author": "Leiden University Libraries",
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "action": {
    "default_icon": "/images/icons/icon128.png",
    "default_popup": "popup.html",
    "default_title": "Leiden Search Assistant"
  },
  "icons": {
    "16": "/images/icons/icon16.png",
    "48": "/images/icons/icon48.png",
    "128": "/images/icons/icon128.png"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "permissions": [
    "contextMenus",
    "tabs",
    "storage"
  ]
}