Run this command to get delta-ui and all dependencies:
npm i delta-ui@last react-datepicker@3.4.1 react-select@4.3.0 styled-components@5.2.1
Add theme-provider and global-style:
import { ThemeProvider } from 'styled-components'
import { GlobalStyle, lightTheme } from 'delta-ui'
<ThemeProvider theme={lightTheme}>
<GlobalStyle />
{/* your app /*}
</ThemeProvider>