Awesome Open Source
Awesome Open Source

System Props

Responsive, theme-based style props for building design systems with React.

Version size MIT License

yarn add system-props


Functions almost identically to styled-system, but adds the following features:

  • Written in TypeScript
  • Chakra's PseudoBox inspired pseudo selector props
  • Access the theme object at any time by using the function syntax
  • Supports common themed shorthand properties, like border, margin, padding, and box-shadow
  • Strict mode: allow only values that are present in the theme
  • Visually distinguish theme values by prefixing system prop values with $

Quick Start

See the example project in this repo for a more complete example.

import { createSystem, color, space } from 'system-props';
import styled, { ThemeProvider } from 'styled-components';

const theme = {
  space: ['0px', '4px', '8px', '16px', '32px'],
  colors: {
    blue100: 'lightblue',
    blue200: 'blue',

const system = createSystem({
  strict, // default: false
  pseudoSelectors, // default: { _hover: '&:hover', ...etc }

const Box = styled.div(system({ ...color, }));

const App = () => {
  return (
    <ThemeProvider theme={theme}>
        margin="$1 $2 $3 $4"
        border="1px solid $blue200"
        borderBottom={(theme) => `3px dotted ${theme.colors.blue200}`}
          bg: '$blue700',


Many of the concepts here come from so many great, existing open-source projects, and they deserve a shout-out!

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