<ngx-contact-list
  [noSmoothScroll]="true"
  [withTemplate]="true"
  propAlphaOrder="name"
  [propsSearch]="['name' , 'lastName']"
  placeholder="type name or contact"
  [data]="contacts"
  height="550px"
>
  <ng-template let-item>
    <div>
      <span>{{item.name + ' ' + item.lastName}}</span>
    </div>
  </ng-template>
</ngx-contact-list>

<ngx-contact-list
  [noSmoothScroll]="true"
  propAlphaOrder="name"
  [propsSearch]="['name' , 'lastName' , 'phone']"
  placeholder="type name or contact"
  [data]="contacts"
  listClass="search-list"
  [withTemplate]="true"
  height="550px"
>
  <ng-template let-item>
    <div class="search-list-item">
      <img [src]=" imageExist(item)" alt="" />
      <span
        >{{item.name + ' ' + item.lastName }} <br />
        <small class="phone-small">
          {{item.phone | slice:0:3}} - {{item.phone | slice:3:6}} - {{item.phone
          | slice:6:9}}
        </small>
      </span>
    </div>
  </ng-template>
</ngx-contact-list>

import { NgxContactListModule } from 'ngx-contact-list';

@NgModule({
  imports: [
    ...,
    NgxContactListModule
  ],
  declarations: [...],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

...
"styles": [
  "...",
  "node_modules/ngx-contact-list/ngx-contact-list.scss"
],
...

...
 /*Custom Styles for ngx contact list */
$color-contact-list : rgb(75, 77, 218) ;
$background-contact-list :#1B2B35;
$color-text :  WhiteSmoke;
$color-input-search : WhiteSmoke;
$border-line-style :  solid;
@import '/node_modules/ngx-contact-list/ngx-contact-list.scss';
...