Ink for Google is a Chrome extension developed by Carlos Jeurissen that aims to improve the visual experience of well-known Google websites such as Search, Gmail, and Calendar. By unifying these sites under the Material Design guidelines set by Google, Ink gives them a fresh coat of paint and a consistent look.

Drawing inspiration from the visual style of Android apps and Google's newest websites, Ink enhances the design of most Google websites, even those that already have material design. It ensures that the design aligns with the guidelines, providing users with a better and more cohesive experience.

To make visual changes, Ink requires permission to read and modify data on google.com sites. If you come across something that you believe needs a visual tweak, you can easily provide feedback or report bugs by clicking on the Ink icon.

With Ink for Google, you can update your favorite Google sites and enjoy a more visually appealing and unified experience across all services.