Theming Storybook

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Storybook’s manager UI is theme-able! You can change theme variables using addon-options.

Set a theme

You can do this in an decorator, addon or in .storybook/config.js. Changing theme at runtime is supported!

First, create or modify .storybook/addons.js to include registering addon-options:

import '@storybook/addon-options/register';

Then, modify .storybook/config.js to include your new options:

import { addDecorator, configure } from '@storybook/react';
import { withOptions } from '@storybook/addon-options';

    theme: {},

When setting a theme, set a full theme object, the theme is replaced, not combined.

See more addon options at

Get a theme

We have created 2 themes for you: “normal” (a light theme) and “dark” (a dark theme).

You can get these themes like so:

import { addDecorator, configure } from '@storybook/react';
import { withOptions } from '@storybook/addon-options';
import { themes } from '@storybook/components';

// Option defaults.
    name: 'Foo',
    theme: themes.dark,

Theme variables

mainBackground: applied to root `background`, // 'linear-gradient(to bottom right, black, gray'
mainBorder: applied to panels `border`, // '1px solid rgba(0,0,0,0.1)'
mainBorderColor: applied for most borders, // 'rgba(0,0,0,0.1)'
mainBorderRadius: applied to panels, buttons, inputs // 4
mainFill: applied to panels `background`, // 'rgba(255,255,255,0.89)'
barFill: applied to TabsBar `background`, // 'rgba(255,255,255,1)'
inputFill: applied to Input `background`, // 'rgba(0,0,0,0.05)'
mainTextFace: applied to root `font-family`,
mainTextColor: applied to root & buttons & input `color`, // black
mainTextSize: applied to root, // 13
dimmedTextColor: applied in less important text, // 'rgba(0,0,0,0.4)'
highlightColor: applied to indicate selection, // '#9fdaff'
successColor: applied to indicate positive, // '#0edf62'
failColor: applied to indicate negative, // '#ff3f3f'
warnColor: applied to indicate ow-ow, // 'orange'
monoTextFace: applied to pre,
layoutMargin: applied to space panels, // 10
overlayBackground: applied to overlay `background`, // 'linear-gradient(to bottom right, rgba(233, 233, 233, 0.6), rgba(255, 255, 255, 0.8))'

Deep theming components

All options above are single key options, in other words, they are variables, and their usage is fixed.

We will extend the theming ability in the future and possibly add more deep theming ability. Right now we allow to deep theme: stories nav panel. Below are the varaiables that are used to deep theme stories nav panel.

storiesNav: deep theme for stories nav

storiesNav: {
  backgroundColor: 'aqua',

brand: deep theme for brand including brand name and shortcuts

brand: {
  background: 'url("/path/to/logo.svg")',

brandLink: deep theme for only brand name

brandLink: {
  border: 'none'

filter: deep theme for stories filter section

filter: {
  backgroundColor: 'red',

treeHeader: deep theme for tree header

treeHeader: {
  color: 'blue',

treeMenuHeader: deep theme for tree menu header of each menu

treeMenuHeader: {
  color: 'aqua',

menuLink: deep theme for menu link of each story

menuLink: {
  color: 'black',

activeMenuLink: deep theme for active menu link for the active story

activeMenuLink: {
  fontWeight: 'light',

treeArrow: deep theme for tree arrow. This accepts an object which receives height, width, base and wrapper

treeArrow: {
  height: 5,
  width: 5,
  base: {
    fontSize: '12px'
  wrapper: {
    backgroundColor: 'white'

The styles provided here support everything emotion does. So that included things like nested selectors!

Adding more theme variables for addons

If addons have a need for specific theme variables, the user has to add them. We advise addons to reuse the variables listed above as much as possible.

Addon actions uses react-inspector which has themes of it’s own. If you want to theme it (our themes do) you can add needs the following additional theme variables:

addonActionsTheme: {
  BASE_FONT_FAMILY: monoFonts.fontFamily,
  BASE_BACKGROUND_COLOR: 'transparent',