<h3>Single selection</h3>
<mat-button-toggle-group name="favoriteColor" aria-label="Favorite Color">
  <mat-button-toggle value="red">Red</mat-button-toggle>
  <mat-button-toggle value="green">Green</mat-button-toggle>
  <mat-button-toggle value="blue">Blue</mat-button-toggle>
</mat-button-toggle-group>

<h3>Multiple selection</h3>
<mat-button-toggle-group name="ingredients" aria-label="Ingredients" multiple>
  <mat-button-toggle value="flour">Flour</mat-button-toggle>
  <mat-button-toggle value="eggs">Eggs</mat-button-toggle>
  <mat-button-toggle value="sugar">Sugar</mat-button-toggle>
</mat-button-toggle-group>
