# May 2026 - Introducing Rhea · JGuang UI

> A more compact Luma. Smaller spacing. Denser surfaces. Built for focused product interfaces.

- Page: https://jiguang132.com/systems/jguang-ui/docs/changelog/2026-05-rhea
- Based on: shadcn/ui documentation (MIT) @ bc0705384b51252af26dcc65425b216bf5eb063c

Introducing Rhea, a new JGuang UI style. A more compact Luma. Smaller spacing. Denser surfaces. Built for focused product interfaces.


  
  
  
Try Rhea in JGuang UI installation


Rhea started from a simple request we've heard a lot: Luma, but more compact. We looked at how people were using the new styles and what they were asking for, and the pattern was clear. A lot of teams wanted the softness and shape of Luma with tighter spacing, smaller controls, and more information density.

Rhea keeps the same rounded foundation, but makes it more compact for product interfaces where space matters. Buttons, inputs, menus, cards, and lists all sit a little tighter so the UI can carry more without feeling crowded.

## Why a new style?

We considered making this a spacing tweak for Luma, but `--spacing` is a multiplier. Changing it would change what familiar utilities mean across your app. `p-2`, `w-4`, and `m-16` would no longer mean the same size.

That tradeoff felt wrong. Compactness should not force you to relearn Tailwind's spacing scale or wonder whether a utility means something different in one style than another.

So Rhea is a new style instead. It lets us adjust component sizes, gaps, and density directly while keeping the underlying utility scale predictable.

Available now in [JGuang UI installation](/systems/jguang-ui#install) for both Radix and Base UI.


  

[Try Rhea](/systems/jguang-ui#install)

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