カーソルを追従する四角いの is a free Chrome add-on developed by Aki. As the name suggests, this add-on creates a square that follows your cursor as you navigate through web pages. When the square overlaps with clickable areas, it provides a subtle visual appeal.

Once installed, the square will appear on all pages you visit. The add-on also offers several customizable options, which can be accessed through the extension's options page. Users can choose from different modes and adjust the color of the square.

The latest update, version 5, improves the layout and readability of the options page. It also introduces a demo area for users to preview the add-on's functionality. Additionally, the scrolling behavior in pointer modes 1 and 4 has been optimized for a smoother experience.

Overall,カーソルを追従する四角いの is a simple and lightweight add-on that adds a touch of visual interest to your browsing experience. It is easy to use and offers customizable options for personalization.