Examine source code of Collections

{
  "manifest_version": 3,
  "name": "Collections",
  "author": "mienaiyami",
  "homepage_url": "https://github.com/mienaiyami/collection-extension-2.0",
  "version": "2.5.1",
  "description": "Organize and manage tabs effortlessly with collections, batch operations, keyboard shortcuts, and export/import features.",
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_popup": "index.html"
  },
  "side_panel": {
    "default_path": "side_panel.html"
  },
  "sidebar_action": {
    "default_panel": "side_panel.html",
    "default_title": "Collections"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "collections@mienaiyami.extensions",
      "strict_min_version": "109.0"
    }
  },
  "permissions": [
    "tabs",
    "activeTab",
    "storage",
    "scripting",
    "unlimitedStorage",
    "alarms",
    "sidePanel",
    "contextMenus",
    "identity"
  ],
  "commands": {
    "add-current-tab-to-active-collection": {
      "suggested_key": {
        "default": "Ctrl+Shift+A"
      },
      "description": "Add current tab to active/opened collection in side panel"
    },
    "_execute_sidebar_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+Y"
      },
      "description": "Open side panel"
    }
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "icons": {
    "16": "/icon16.png",
    "32": "/icon32.png",
    "48": "/icon48.png",
    "128": "/icon128.png"
  }
}