what is spark-ui fr?

Spark UI is a collection of pre built visual building blocks, called components, for websites made with React. Instead of installing it as a normal package that stays hidden inside your project, you use a tool called the shadcn CLI to copy the actual source code of each component straight into your own codebase, so you fully own and can edit the code afterward. The components focus on expressive animation and distinctive visual style rather than being plain and generic. Every component supports both light and dark mode automatically through shared color settings, includes keyboard navigation and screen reader friendly markup, and respects a setting that reduces motion for people sensitive to animation. The project also ships a documentation website built with live previews, search, and copyable install commands, so you can see what a component looks like before adding it to your project. Under the hood, Spark UI is built with Next.js, React, and TypeScript, styled using Tailwind CSS, and animated using Framer Motion. To install a single component into your own app, you run a shadcn command pointing at that component's file on the Spark UI website, and the source code gets copied into your project. The project recommends reviewing a component's code before installing it, and states that installing a component never requires you to hand over any private files, passwords, or secret keys. The repository also includes an installable skill file that teaches AI coding assistants like Claude Code and Cursor how to browse, install, and customize Spark UI components correctly. Optional GitHub login and a favorites feature can be turned on by connecting your own Supabase backend project, but the site works fully without one. The project is open source under the MIT license, a permissive license that allows free use including commercial use.