Files
Miguel Ángel f2ae1f592a fix(studio): remove debug outline from preview iframe; add sub-composition video regression test
Removes outline: '1px solid black' from the preview iframe in Player.tsx —
a leftover debug style that drew a visible rectangular border around every
composition preview.

Adds regression test 'sub-composition-video' to prevent recurrence of
the bug where video elements inside sub-compositions (lacking explicit
id attributes) rendered as black frames. Covers the three-part fix:
union selector in parseVideoElements, Infinity end fallback, and
auto-assigned id persistence into compiled HTML.
2026-03-30 22:56:15 +02:00
..
2026-03-21 22:43:56 -07:00
2026-03-29 10:10:03 +00:00
2026-03-21 22:43:56 -07:00

@hyperframes/studio

Browser-based composition editor UI for Hyperframes. Provides a visual timeline, code editor, and live preview for building video compositions.

Install

npm install @hyperframes/studio

What it does

The studio is a React application with:

  • Visual timeline — drag, resize, and arrange elements on tracks
  • Code editor — edit HTML and GSAP scripts with CodeMirror (syntax highlighting, autocomplete)
  • Live preview — see changes in real time as you edit
  • Composition inspector — view and modify element properties

Development

The studio is embedded in the hyperframes dev command. To develop the studio UI itself:

cd packages/studio
bun run dev        # Start Vite dev server
bun run build      # Build for production
bun run typecheck  # Type-check

Tech stack

  • React 18/19, Zustand (state management)
  • CodeMirror 6 (editor)
  • Tailwind CSS (styling)
  • Vite (bundler)
  • Phosphor Icons

Documentation

Full documentation: hyperframes.heygen.com/packages/studio