How to remove padding-top for q-page-container? / Or how to use space under transparent headerbar?

[HoboDev]

Hi,

I have a project where the headerbar will be transparent or use a backdrop-filter.
Currently I'm stuck on how to use the area below the bar which is usually hidden.

So far I've tried to change the class and putting the header in the q-page-container but that does not lead to any changes.
I'd like to get a fullpage picture above the fold that should start at the top
and have the bar z-indexed above it.

Any pointers are appreciated.

[cdar]

I don't know why this is not available to end user in a normal way :/
You may use this "hack":

const layoutKey = '_q_l_';
const $layout = inject(layoutKey);
console.log("$layout", $layout);
$layout.header.space = false;

[SaadTariq-FabTechSol]

How and where??