paperless-ngx/src-ui/src/app/components/common/input/select/select.component.html

<div class="form-group">
  <label [for]="inputId">{{title}}</label>
  <div [class.input-group]="showPlusButton()">
    <select class="form-control" [id]="inputId" [(ngModel)]="value" (change)="onChange(value)" (blur)="onTouched()"
      [disabled]="disabled" [style.color]="textColor" [style.background]="backgroundColor">
      <option *ngIf="allowNull" [ngValue]="null" class="form-control">---</option>
      <option *ngFor="let i of items" [ngValue]="i.id" class="form-control">{{i.name}}</option>
    </select>
    <div *ngIf="showPlusButton()" class="input-group-append">
      <button class="btn btn-outline-secondary" type="button" (click)="createNew.emit()">
        <svg class="buttonicon" fill="currentColor">
          <use xlink:href="assets/bootstrap-icons.svg#plus" />
        </svg>
      </button>
    </div>
  </div>
  <small *ngIf="hint" class="form-text text-muted">{{hint}}</small>
</div>