Using Dripsy
Dripsy is an almost-drop-in replacement for React Native's UI components.
Change your imports from react-native to dripsy.
Before
import { View, Text } from 'react-native'After
import { View, Text, H1, P } from 'dripsy'Use the sx prop instead of style to use themed and responsive styles:
<View  sx={{    height: [100, 400],    backgroundColor: '$primary',    marginX: 10,  }}/>Instead of marginHorizontal, use marginX or mx, as seen on the theme-ui docs.
👀 What does Dripsy look like
Create a theme
export const theme = makeTheme({  colors: {    $text: '#000',    $background: '#fff',    $primary: 'tomato',  },  space: {    // recommended: set 0 first, then double for consistent nested spacing    $0: 0,    $1: 4,    $2: 8,    $3: 16,    $4: 32,    $5: 64,    $6: 128,    $7: 256,  },  fontSizes: {    $0: 12,    $1: 14,    $2: 16,    $3: 18,    $4: 24,    $5: 28,    $6: 32,  },  text: {    h1: {      fontSize: '$2', // 16px, from `fontSizes` above    },    p: {      fontSize: '$0', // 12px from `fontSizes`      mb: '$3', // 16px from `space`    },  },})...and build a beautiful, responsive UI
<Text  sx={{    color: '$primary',    padding: ['$1', '$3'], // [4px, 16px] from theme.space  }}>  Themed color!</Text>...you can even use "HTML" elements
import { H1, H2, P, A } from 'dripsy'const Header = () => (  <H1    sx={{      color: '$text', // #000 from theme.colors      fontSize: '$2', // 24px from theme.fontSizes    }}  >    Header!  </H1>)Credit to Evan Bacon for @expo/html-elements, used above!
sx Factory
If you need fine-grained theme usage, you can pass a function to sx:

The function receives your app's theme (with Intellisense) and should return the sx style.