import * as React from "react"; import styled, { ThemeProvider } from "../.."; // Define our button, but with the use of props.theme this time const Button = styled.button` color: ${props => props.theme.fg}; border: 2px solid ${props => props.theme.fg}; background: ${props => props.theme.bg}; font-size: 1em; margin: 1em; padding: 0.25em 1em; border-radius: 3px; `; // Define our `fg` and `bg` on the theme const theme = { fg: "palevioletred", bg: "white" }; // This theme swaps `fg` and `bg` const invertTheme = ({ fg, bg }: { fg: string, bg: string }) => ({ fg: bg, bg: fg }); const MyApp =
;