Examine source code of Scrapyard Bookmarks

{
  "version": "2.2.2",
  "applications": {
    "gecko": {
      "id": "scrapyard-we@firefox",
      "strict_min_version": "102.0"
    }
  },
  "manifest_version": 2,
  "name": "Scrapyard",
  "description": "Advanced bookmark manager with page archiving functionality.",
  "homepage_url": "https://gchristensen.github.io/#scrapyard",
  "default_locale": "en",
  "icons": {
    "16": "icons/scrapyard.svg",
    "24": "icons/scrapyard.svg",
    "32": "icons/scrapyard.svg",
    "64": "icons/scrapyard.svg",
    "128": "icons/scrapyard.svg"
  },
  "content_security_policy": "script-src 'self'; object-src 'self';",
  "permissions": [
    "<all_urls>",
    "tabs",
    "activeTab",
    "tabHide",
    "alarms",
    "bookmarks",
    "menus",
    "contextMenus",
    "downloads",
    "nativeMessaging",
    "notifications",
    "storage",
    "unlimitedStorage",
    "webNavigation",
    "webRequest",
    "webRequestBlocking",
    "management",
    "cookies",
    "contextualIdentities"
  ],
  "sidebar_action": {
    "default_title": "Scrapyard",
    "default_panel": "ui/sidebar.html",
    "default_icon": "icons/scrapyard.svg"
  },
  "commands": {
    "_execute_sidebar_action": {
      "suggested_key": {
        "default": "Alt+Y"
      },
      "description": "Open Scrapyard in sidebar"
    },
    "bookmark_to_default_shelf": {
      "suggested_key": {
        "default": "Alt+Q"
      },
      "description": "Bookmark the current tab to the default shelf"
    },
    "archive_to_default_shelf": {
      "suggested_key": {
        "default": "Alt+W"
      },
      "description": "Archive the current tab to the default shelf"
    }
  },
  "background": {
    "page": "background.html",
    "persistent": true
  },
  "browser_action": {
    "default_icon": {
      "64": "icons/scrapyard.svg"
    },
    "default_title": "Scrapyard",
    "default_popup": "ui/popup.html"
  },
  "options_ui": {
    "open_in_tab": true,
    "page": "ui/options.html"
  },
  "web_accessible_resources": [
    "icons/lock.svg",
    "icons/scrapyard.svg",
    "ui/edit_toolbar.css",
    "savepage/shadowloader.js",
    "ui/site_capture.html",
    "ui/notes_iframe.html",
    "ui/notes.html"
  ],
  "protocol_handlers": [
    {
      "protocol": "ext+scrapyard",
      "name": "Scrapyard",
      "uriTemplate": "reference.html#%s"
    }
  ],
  "omnibox": {
    "keyword": "scr"
  }
}