XF 2.3 How we can change background with darkmode?

[Hareon]

I am using an background that meets with the light theme that I am using.
But in dark mode, the page background dont stay dark. Because the wallpaper is a white patterned wallpaper.

So, I want to use another wallpaper to stay in darkmode. But I don't see this option. Is possible?

 

[TBB-AU]

I like to ask the same question?

Light mode I have a light grey/white

Dark mode the light grey shows up and doesn't switch to dark

The background page colour

 

[AndyB]

You might like this add-on:

https://xenforo.com/community/resources/page-background-manager.9540/