t-cell>
      </ng-container>
      <ng-container cdkColumnDef="color">
        <mat-header-cell *cdkHeaderCellDef>Color</mat-header-cell>
        <mat-cell *cdkCellDef="let row">{{ row.color }}</mat-cell>
      </ng-container>
      <ng-container cdkColumnDef="age">
        <mat-header-cell *cdkHeaderCellDef>Age</mat-header-cell>
        <mat-cell *cdkCellDef="let row">{{ row.age }}</mat-cell>
      </ng-container>
      <mat-header-row *cdkHeaderRowDef="displayedColumns" />
      <mat-row *cdkRowDef="let 