```js
// Button.stories.js

import Button from './Button.vue';

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

const Template = (args) => ({
  components: { Button },
  setup() {
    return { args };
  },
  template: '<Button v-bind="args" />',
});

// This is an accessible story
export const Accessible = Template.bind({});
Accessible.args = {
  primary: false,
  label: 'Button',
};

// This is not
export const Inaccessible = Template.bind({});
Inaccessible.args = {
  ...Accessible.args,
  backgroundColor: 'red',
};
```