Gray is a free utility tool designed for Mac users that allows for a personalized visual experience by setting light or dark appearances on a per-application basis. This functionality enables users to tailor the look of their applications to their preference, enhancing usability and aesthetics. Gray is particularly useful for those who switch between light and dark modes frequently, offering a seamless solution to manage app appearances without altering the system-wide settings.

The application is straightforward to use, providing a simple interface for users to select their desired theme preferences for individual apps. This flexibility makes Gray an essential tool for users who want to maintain a consistent visual experience across different applications, whether for work or leisure. With its focus on customization, Gray stands out as a practical addition to any Mac user's toolkit.