Destiner's notes

Creating a Custom Style for Sandpack

9 February 2022

At some point in setting up Sandpack in your application, you might want to customize its looks. You can tweak the appearance of the editor by creating a custom theme.


To make a theme, create a theme variable:

const theme = {
  palette: {
    activeText: '#de904d',
    defaultText: '#bababa',
    inactiveText: '#979797',
    activeBackground: '#2a2a2a',
    defaultBackground: '#343434',
    inputBackground: '#2e2e2e',
    accent: '#de904d',
    errorBackground: '#dac1fb',
    errorForeground: '#b08df8',
  syntax: {
    plain: '#f0fdaf',
    comment: {
      color: '#757575',
      fontStyle: 'italic',
    keyword: '#e5fd78',
    tag: '#f0fdaf',
    punctuation: '#ffffff',
    definition: '#eeeeee',
    property: '#e0a571',
    static: '#ffffff',
    string: '#dafecf',
  typography: {
      'Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"',
      '"Fira Code", "Fira Mono", "DejaVu Sans Mono", Menlo, Consolas, "Liberation Mono", Monaco, "Lucida Console", monospace',
    fontSize: '14px',
    lineHeight: '1.6',

If you’re using TypeScript, you can use the SandpackTheme type.

Also, there is a GUI tool to easily create and preview your theme.


You can pass the theme that you created to the Sandpack component:

import { Sandpack } from '@codesandbox/sandpack-react';
import '@codesandbox/sandpack-react/dist/index.css';

export default function App() {
  return <Sandpack theme={theme} />;

You can learn more about theming in the Sandpack docs.