Hub 2018.3 delivers an update to the user interface with a clean, fresh look. We've updated the visual appearance of every page in the application with redesigned controls and a polished theme.
The new theme uses components from the latest version of JetBrains' library for web-based products, Ring UI. By using standard components from this library, you enjoy more consistent and predictable behavior when you use Hub.
This library is open source and can be used to build pluggable widgets that look right at home in your dashboards and project overview pages. For more information, see Widget Development Guide.