[editor] ToggleButton: Use transparent selectionColor when strikeSelectedOption

projects/common/models/elements/compound-elements/cloze/cloze-child-elements/toggle-button.ts

@@ -55,6 +55,11 @@ export class ToggleButtonElement extends InputElement implements ToggleButtonPro
     }
   }
 
+  setProperty(property: string, value: unknown): void {
+    super.setProperty(property, value);
+    if (property === 'strikeSelectedOption') this.styling.selectionColor = 'transparent';
+  }
+
   getVariableInfos(): VariableInfo[] {
     return [{
       id: this.id,

projects/editor/src/app/components/properties-panel/model-properties-tab/input-groups/select-properties.component.ts

@@ -14,6 +14,7 @@ import { UnitService } from 'editor/src/app/services/unit-services/unit.service'
       {{'propertiesPanel.strikeOtherOptions' | translate }}
     </mat-checkbox>
     <mat-checkbox *ngIf="combinedProperties.strikeSelectedOption !== undefined"
+                  [matTooltip]="'Setzt gleichzeitig die Auswahlfarbe auf transparent'"
                   [checked]="$any(combinedProperties.strikeSelectedOption)"
                   (change)="updateModel.emit({ property: 'strikeSelectedOption', value: $event.checked })">
       {{'propertiesPanel.strikeSelectedOption' | translate }}