KyronLabs/design-system ? reverse-engineered prompt

Build me a Kyron design system repo that acts as the single source of truth for the whole product family.

I want clear docs for the brand, the UI rules, and the core design tokens, plus a Flutter implementation that developers can actually use in apps. It should include the color system, typography, spacing, radius, shadows, and the main component patterns like buttons, inputs, cards, bottom sheets, navigation, and thread connectors. Also add the motion, haptics, accessibility, and performance guidance so the experience feels fast and consistent on iOS, Android, and web.

Please make it feel polished and easy to navigate, with a solid overview and separate sections for designers and developers. If you need to look up current Flutter best practices or docs online, do that. The goal is a practical design system that matches Kyron’s brand, keeps everything consistent, and gives us reusable tokens and widgets we can build from right away.