<p>
  <mat-form-field appearance="legacy">
    <mat-label>Legacy form field</mat-label>
    <input matInput placeholder="Placeholder">
    <mat-icon matSuffix>sentiment_very_satisfied</mat-icon>
    <mat-hint>Hint</mat-hint>
  </mat-form-field>
</p>
<p>
  <mat-form-field appearance="standard">
    <mat-label>Standard form field</mat-label>
    <input matInput placeholder="Placeholder">
    <mat-icon matSuffix>sentiment_very_satisfied</mat-icon>
    <mat-hint>Hint</mat-hint>
  </mat-form-field>
</p>
<p>
  <mat-form-field appearance="fill">
    <mat-label>Fill form field</mat-label>
    <input matInput placeholder="Placeholder">
    <mat-icon matSuffix>sentiment_very_satisfied</mat-icon>
    <mat-hint>Hint</mat-hint>
  </mat-form-field>
</p>
<p>
  <mat-form-field appearance="outline">
    <mat-label>Outline form field</mat-label>
    <input matInput placeholder="Placeholder">
    <mat-icon matSuffix>sentiment_very_satisfied</mat-icon>
    <mat-hint>Hint</mat-hint>
  </mat-form-field>
</p>
