Unable to activate the dark mode

I use this forum with WebPositive and in the profile settings I chose the automatic dark mode.
But nothing happens. How can I use the dark mode. The white background is much too bright for longer reading. I use Haiku on an Asus Laptop and I’m not able to adjust the brightness. The forum background is really “very white”.

Hi, automatic dark mode refers to a css querry called @media prefers-color-scheme, unfortunately webpositive doesn’t support that at the moment.

Ah, okay. Thank you.