<mat-toolbar color="primary">
      <mat-toolbar-row>
        <span>Custom Toolbar</span>
      </mat-toolbar-row>
      <mat-toolbar-row>
        <span>Second Line</span>
        <span class="example-spacer"></span>
        <set-icon class="example-icon" shape="security"></set-icon>
      </mat-toolbar-row>
      <mat-toolbar-row>
        <span>Third Line</span>
        <span class="example-spacer"></span>
        <set-icon class="example-icon" shape="favorite"></set-icon>
        <set-icon class="example-icon" shape="delete"></set-icon>
      </mat-toolbar-row>
</mat-toolbar>