Ion-datetime background not correctly rendered in firefox

We recently upgraded to Ionic v6 and I am encountering a bug where the background color on datetime is being ignored in Firefox (96.0.2). Looks fine in Chrome (97.0.4692.71).
Using @ionic/angular@6.0.3

What’s the markup you’re using for this? Things seem to be working fine on my machine.

Can you isolate this in a simple demo?

We are using scss.
I will try to make some time to create a minimal demo, no guarantee on when.