How can I achive the popover select style on the ionic sample?

#1

Hello good day, I am new here.

I just want to ask how I can achieve this style on the select
Screenshot_2018-08-11%20Ionic%20Framework

I tried this code and set the interface to popover

  <ion-col col-md-6>
    <ion-list>
      <ion-item>
        <ion-label floating>Type</ion-label>
        <ion-select interface="popover" [(ngModel)]="userType">
          <ion-option value="1">Type 1</ion-option>
          <ion-option value="2">Type 2</ion-option>
        </ion-select>
      </ion-item>
    </ion-list>
  </ion-col>

but the output is like this
Screenshot_2018-08-11%20Ionic%20Lab

I want those check icon instead of that circle.

What did I miss?

I will appreciate, for any advice that will come.

Thanks