n8n/packages/design-system/.storybook/preview.js

import './font-awesome-icons';
import './storybook.scss';

import lang from 'element-ui/lib/locale/lang/en';
import locale from 'element-ui/lib/locale';

import Vue from 'vue';

locale.use(lang);

// https://github.com/storybookjs/storybook/issues/6153
Vue.prototype.toJSON = function () {
	return this;
};

export const parameters = {
	actions: {
		argTypesRegex: '^on[A-Z].*',
	},
	controls: {
		matchers: {
			color: /(background|color)$/i,
			date: /Date$/,
		},
	},
	backgrounds: {
		default: '--color-background-xlight',
		values: [
			{
				name: '--color-background-dark',
				value: 'var(--color-background-dark)',
			},
			{
				name: '--color-background-base',
				value: 'var(--color-background-base)',
			},
			{
				name: '--color-background-light',
				value: 'var(--color-background-light)',
			},
			{
				name: '--color-background-lighter',
				value: 'var(--color-background-lighter)',
			},
			{
				name: '--color-background-xlight',
				value: 'var(--color-background-xlight)',
			},
		],
	},
	themes: {
		list: [
			{
				name: 'dark',
				class: 'theme-dark',
				color: '#000',
			},
		],
	},
	options: {
		storySort: {
			order: ['Docs', 'Styleguide', 'Atoms', 'Modules'],
		},
	},
};