Prebuilt Panels delete the Panel Id when rendered

[paulathome]

I've saved a few prebuilt panels and after editing the top level panel tag includes an id tag for the panel. I'm doing this so that I can do some custom styling of that panel. Once I add the panel into an existing dashboard the id is missing.

This is the first few lines of my panel:

<panel id="paulpanel">
  <chart id="paulchart">

And this is the rendered HTML:

<div class="panel-element-row">
    <div id="panel1_paulchart" class="splunk-view dashboard-element chart" style="width: 100%;">...</div>

What I was expecting was this:

<div id="paulpanel" class="panel-element-row">
    <div id="panel1_paulchart" class="splunk-view dashboard-element chart" style="width: 100%;">...</div>

What happened to my panel id?

Thanks