Boot screen with DietPi and Odroid C4

Hello,

I have managed to get my Odroid running with DietPi to get into chromium kiosk mode and works very well so far.

My question is how to suppress the entire boot and console messages until chrome is up and maybe show a splash or boot screen. All the hints I found so far may fit for Raspberry Pi but Odroid seems to be special?

Maybe someone here can point me into the right direction.

Cheers,

Sven