Full stack UI refers to the practice of creating user interfaces that span the entire stack of web development technologies. This means that full stack UI developers are comfortable working with both front-end and back-end technologies, and are able to create rich, interactive user interfaces that take advantage of all the features and capabilities of modern web browsers.
Full stack UI developers are able to create user interfaces that are both highly functional and visually appealing. They have a deep understanding of how web browsers work, and are able to take advantage of new features and capabilities as they are introduced. This allows them to create user interfaces that are not only effective, but also stylish and up-to-date.