# AppServiceProvider boot method:
```
public function boot(): void
{
FilamentView::registerRenderHook(
PanelsRenderHook::TOPBAR_START,
fn (): View => view('topbar-title'),
);
}
```
# Ideal topbar-title.blade.php file:
```
@if ($header = $this->getHeader())
{{ $header }}
@elseif ($heading = $this->getHeading())
@php
$subheading = $this->getSubheading();
@endphp
@if ($heading instanceof \Illuminate\Contracts\Support\Htmlable)
{{ $heading }}
@endif
@if ($subheading instanceof \Illuminate\Contracts\Support\Htmlable)
{{ $subheading }}
@endif
@endif
```
# topbar-title.blade.php with controller:
```
@php
$controller = request()->route()->getController();
$breadcrumbs = $controller->getBreadcrumbs();
@endphp
@if ($header = $controller->getHeader())
{{ $header }}
@elseif ($heading = $controller->getHeading())
@php
$subheading = $controller->getSubheading();
@endphp
@endif
```