const { createGlobalStyle } = styled;

const GlobalStyle = createGlobalStyle`
  :root {
    --theme-primary: #F5005E;
  }
`;

const StyledApp = styled.div`
  color: var(--theme-primary);
`;

function App() {
  return (
    <StyledApp>
      <GlobalStyle />
      My color is set using CSS custom properties and createGlobalStyle 🤩
    </StyledApp>
  );
}

ReactDOM.render(<App />, document.getElementById("root"));