Setting dark mode in dolphin manually

I’m trying to set dark mode on dolphin in debian minimal, running XFCE DE, but I can’t find any option in the configuration GUI.
I set haruna for breeze dark with no problems, same with kate, but dolphin doesn’t have an option to set manually a dark theme, or perhaps I missed it?

It’s been a while but as far as I remember, you’ll probably need qt5ct , the style plugins and the environment set.