argyleink/open-props
Open Props
Open Props is a CSS custom property library and design token set providing reusable variables for colors, typography, and layout. It functions as a CSS variable framework and design system intended to ensure visual consistency across components and platforms.
The project includes an optimization toolkit for generating selector-scoped variable bundles and removing unused design tokens from stylesheets to reduce final file size. It also provides configuration files to enable design variable autocompletion within code editors.
The system covers broader capabilities in adaptive web interface design, CSS variable management, and rapid UI prototyping.
Features
- Design Token Systems - Provides a comprehensive framework for managing visual properties through hierarchical design tokens.
- Design System Implementations - Provides the implementation foundation for building consistent visual languages using shared custom properties.
- Adaptive Interface Layouts - Facilitates flexible layouts that automatically adjust colors and typography based on screen dimensions.
- CSS Custom Property Libraries - Provides a comprehensive collection of reusable CSS variables for colors, typography, and layout.
- CSS Variable Theming - Implements a system of custom properties that serve as a foundation for responsive interfaces.
- Custom CSS Variable Definitions - Implements a global system for defining semantic CSS custom properties across the DOM.
- CSS Theme Variable Managers - Organizes and distributes a large library of design tokens to maintain a unified look.
- Design Tokens - Ships a curated set of design tokens for colors and typography to ensure visual consistency.
- Build-Time Optimizers - Optimizes the final stylesheet by pruning unused custom properties during the build process.
- Bundle Size Optimization - Includes build tools to remove unused design tokens and decrease the final stylesheet size.
- CSS Variable Generators - Generates specialized property sets with specific selector scopes and compatibility overrides.
- CSS Bundle Pruning - Offers tools for generating scoped bundles and pruning unused styles to reduce bundle size.
- UI Prototyping - Accelerates UI development by utilizing pre-defined design tokens instead of raw CSS values.
- Viewport-Based Scaling - Provides variables that automatically adjust sizes based on the browser viewport width.
- Scoped Variable Bundles - Groups sets of custom properties under specific CSS classes or attributes to create themed context boundaries.
- Tree-Shaking Optimizers - Includes tools to remove unused CSS variables during the build process to reduce delivery size.
- Utility Based Frameworks - CSS custom properties for consistent and adaptive design.
