UI Patch Demo
Change the appearance of h-state elements using classAdd, classRemove, and cssVars without re-rendering templates.
Theme Switch (Full Frame + UI)
Style-Only Partial (UI Only)
Sends only a UI patch without state changes. The template is not re-rendered.
Clear UI
Resets all UI patches, restoring the default appearance.
Preview Card
Current theme: "reset". CSS variables on the h-state element control the accent color and background.