PrimeNG 18: Panel Component - showHeader deprecation note is confusing

[thomas-w-grant]

❓ Is the deprecation note for showHeader correct in source code for PrimeNG v18 Panel component?

The source code reads:

/**
     * Specifies if header of panel cannot be displayed.
     * @group Props
     * @deprecated since v15.4.2, use `headericons` template instead.
     */
    @Input({ transform: booleanAttribute }) showHeader: boolean = true;

If I am correctly understanding what showHeader is, I don't see how headericons template is a logical equivalent. I am looking to hide the header (e.g. background color and other style elements associated with the header) when I don't want/need it.

Looking at the component's template, it looks like showHeader is the only thing that will drive whether .p-panel-header div will be rendered.

<div class="p-panel-header" *ngIf="showHeader" (click)="onHeaderClick($event)" [attr.id]="id + '-titlebar'">

I don't see headericons template anywhere near the logic that shows/hides the <div class="p-panel-header.