storybook/docs/snippets/common/component-story-custom-params.js.mdx

```js
// Button.stories.js|ts|jsx|tsx

import { Button } from './Button';

export default {
  /* 👇 The title prop is optional.
  * See https://storybook.js.org/docs/react/configure/overview#configure-story-loading
  * to learn how to generate automatic titles
  */
  title: 'Button',
  component: Button,
};

const Template = (args) => ({
  // 👈 Your template goes here
});

export const Primary = Template.bind({});
Primary.args = {
  primary: true,
  label: 'Button',
};
Primary.parameters = {
  backgrounds: {
    values: [
      { name: 'red', value: '#f00' },
      { name: 'green', value: '#0f0' },
      { name: 'blue', value: '#00f' },
    ],
  },
};
```