themebuilder-what-is-new-hero-image-2x

ThemeBuilder

What's New

ThemeBuilder: Performance Improvements and Optimized Theme Processing

ThemeBuilder introduces performance enhancements that improve theme editing responsiveness and project load times. Optimized CSS processing logic and compressed asset delivery reduce theme payload size and improve preview update speed when adjusting variables.

Key improvements include:

  • Faster variable updates through intelligent compilation handling
  • Reduced unnecessary CSS recompilation during design iterations
  • Real-time preview updates without full page refresh
  • Optimized theme asset delivery for improved loading performance

These updates provide a smoother and more efficient design workflow, particularly for large and complex themes.

ThemeBuilder: Expanded and Unified Component Preview Coverage

The component preview system is now fully aligned with the official Kendo UI HTML specifications. This ensures consistent visual parity between ThemeBuilder previews and production components.

Enhancements include:

  • Expanded component coverage (PDF Viewer, PropertyGrid, SpeechToTextButton, Spreadsheet, TaskBoard, ContextMenu, Timeline, and others)
  • Complete variant support based on official specifications
  • Interactive state preview for default, hover, focus, active, disabled, selected and invalid states
  • Automatic synchronization with upstream component updates

This alignment ensures consistent behavior and accurate theme customization across all supported components.

ThemeBuilder - Changing the hover state background color

ThemeBuilder

Product overview Buy Try

New features

What's new across all Telerik products?

See the updates feed

get-started-waves

Next Steps

See pricing

Check out the offers. Purchase an individual license for ThemeBuilder, or treat yourself to one of our bundles.

Start Your Free Trial

Try ThemeBuilder with dedicated technical support.