create-nextjs-storybook/templates/sb/preview.jsx

Install embedded Storybook route into a NextJS project

/** @type { import('${rendererPackage}').Preview } */
const preview = {
  parameters: {
    actions: { argTypesRegex: '^on[A-Z].*' },
    controls: {
      matchers: {
       color: /(background|color)$/i,
       date: /Date$/i,
      },
    }
  },
};
export default preview;