Modify Gmail CSS is a free Chrome extension developed by Reginaldo Morais. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This extension aims to change the appearance of Gmail by modifying its CSS to resemble Google Inbox.

With Modify Gmail CSS, users can give their Gmail interface a fresh new look similar to Google Inbox. The extension achieves this by applying custom CSS styles to the Gmail web page. By simply installing and activating the extension, users will notice a visual transformation of their Gmail interface, making it resemble the user-friendly and visually appealing design of Google Inbox.

This extension provides a simple and straightforward way to personalize the appearance of Gmail without the need for any complex configuration or coding. Modify Gmail CSS is a great choice for users who prefer the layout and design of Google Inbox and wish to have a similar experience while using Gmail.