MarmoUI is a free Chrome add-on developed by Erica Xu. It falls under the category of Browsers and is specifically categorized as an Add-ons & Tools subcategory. MarmoUI aims to enhance the user interface and functionality of Marmoset, offering a better experience for users.

The main features of MarmoUI include an overall improvement in the user interface, with better colors and formatting of information. The add-on also includes an auto retrieval feature, which displays the latest submission results, and an auto reload feature for submissions waiting to be tested. This ensures that users have access to up-to-date information without manual intervention.

MarmoUI also introduces a quick-submission box, allowing users to make submissions faster and more efficiently. Additionally, the add-on provides the ability to sort information by simply clicking on the header, making it easier to organize and navigate through the data.

One notable feature of MarmoUI is the color highlight on submission scores and passed/failed submissions, providing users with a quick overview of the submission status. This feature allows users to easily identify successful and unsuccessful submissions at a glance.

Moreover, MarmoUI hides unnecessary and irrelevant information, ensuring a clutter-free user interface and a more streamlined experience.

It is worth mentioning that the source code for MarmoUI is available on GitHub, providing transparency and allowing users to contribute to the development of the add-on.

Overall, MarmoUI offers a significant improvement to the Marmoset experience on Chrome, enhancing the user interface and providing convenient features for faster and more efficient submissions.