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

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' },
    ],
  },
};
```