Jmix UI Samples application contains over 150 examples of using Jmix visual components and containers. Each example includes source code, description, and links to the documentation.
Petclinic is a simple demo application built with Jmix. It is based on the commonly known Spring Petclinic example. The source code is on GitHub.
Online showcase of the Helium theme. Contains editor which allows you to create custom color presets for Helium.