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Progress ThemeBuilder by Telerik is a comprehensive visual design tool that accelerates user interface customization for Telerik and Kendo UI web components. ThemeBuilder enables you to style virtually every appearance-related property of the UI components, from top-level elements to the smallest of details, without requiring direct CSS manipulation. It integrates with existing development processes and allows developers to create, modify, and maintain consistent and visually appealing themes across applications. This tool significantly reduces the time and effort required for UI customization and makes it easy to align them with branding and design specifications.
The Progress ThemeBuilder 2026 Q2 update introduces support for the new Meridian theme, giving developers greater flexibility to design and customize modern user interfaces through an integrated theming workflow. With access to updated styles, components, and design tokens directly within ThemeBuilder, teams can more easily create polished and consistent application experiences that align with the latest Kendo UI design system. The update also streamlines theme management and customization, helping developers accelerate UI development while maintaining visual consistency and brand alignment across projects.
To see a full list of what's new in 2026 Q2, see our release notes.
Progress ThemeBuilder is licensed per user and is available as an annual license with a one year support subscription, which is available in three tiers: Lite, Priority or Ultimate. See our Progress ThemeBuilder licensing page for full details.
For more information, see our Progress ThemeBuilder product page.

Optimajet FormEngine is a drag-and-drop React form builder that lets teams create, manage, and render complex web forms without writing frontend code. It allows developers and business users to visually design forms, store them as JSON, and render them at runtime. As a React JS library, it easily integrates into existing applications while giving developers full control over form logic, structure, and data flow, making it well suited for complex data collection.
Optimajet FormEngine enables JSON Schema validation for forms, allowing developers to validate form JSON directly within their IDE, identify structural issues, incorrect data types, and unsupported configurations early in the development process, and enforce a consistent, well-defined structure across all forms. By providing real-time feedback, inline error highlighting, and autocomplete suggestions, it improves accuracy and reduces the need for repeated testing cycles, helping developers work more efficiently while minimizing runtime errors and ensuring more reliable form implementations.
Optimajet FormEngine is licensed based on usage type (internal commercial use, public web/SaaS, or OEM embedding), number of domains for the visual editor, and access to additional ready-made components. Licenses are perpetual and include 6 months or 1 year of updates and support. See our Optimajet FormEngine licensing page for full details.
For more information, visit our Optimajet FormEngine product page.

Ribbon bars are graphical user interface (GUI) patterns that organize commands and features into a series of tabs, each containing grouped controls such as buttons, dropdowns, and galleries. Widely adopted in modern software applications, ribbons present functionality in a structured and visually accessible layout to improve discoverability. This approach reduces reliance on deeply nested menus and toolbars, enabling users to locate relevant tools more quickly based on context.
Several Vue.js user interface suites provide ribbon functionality, including:
For an in-depth analysis of features and price, visit our comparison of Vue.js UI suites.

Layout components in UI suites provide structured systems for arranging and aligning interface elements, giving developers a consistent and efficient way to build user interfaces. By simplifying positioning and handling responsive behavior, they reduce development complexity while ensuring a cohesive design across screens and devices. This leads to faster development, improved maintainability, and a better user experience. Common use cases include creating responsive dashboards, organizing forms, structuring navigation, and building applications that need to adapt across multiple devices.
Several Angular UI suites offer layout components including:
For an in-depth analysis of features and price, visit our Angular UI suites comparison.

ComponentSource and Optimajet have built a strong partnership focused on helping developers create, manage, and render complex web forms. OptimaJet provides flexible, developer-friendly components designed to simplify business process management, enabling teams to build scalable, efficient applications while reducing development time and cost.
At the core of their offering is Optimajet FormEngine, which helps developers to rapidly design dynamic, customizable forms with minimal effort. It supports complex logic and data handling, and provides the flexibility needed to adapt forms to specific business requirements across a wide range of industries.
This collaboration enables ComponentSource to further differentiate its product portfolio by offering advanced form-building solutions that meet modern development demands. By distributing OptimaJet’s products globally, ComponentSource ensures developers worldwide can easily access, evaluate, and implement these tools, strengthening its position as a trusted source for high-quality development components.
Learn more about Optimajet.