Vaadin 25 Theming: Aura & Lumo

Use the Vaadin MCP tools (search_vaadin_docs, get_component_styling, get_component_java_api) to look up the latest documentation whenever uncertain about a specific API detail. Always set vaadin_version to "25" and ui_language to "java".

For an exact Java API signature or to read source, use the javadoc MCP (mcp__javadoc__* — find via ToolSearch javadoc if not loaded) to read Javadoc and sources from Maven Central instead of unpacking jars from ~/.m2.

Vaadin 25 ships two fully supported themes — Aura and Lumo. They differ in visual style, customization approach, and available features. This skill covers both.

Choosing a Theme