How to change background color program?

[Luz]

Hello there, my name is Luz.

I'm a complete novice to XnView (just installed it). And I chose the option for a white background for the organiser, and I'd like to change it to grey/dark. But I don't know how to do so. Could anyone assist me please?

Thank you and have a good day! Best

[cday]

I'm a complete novice to XnView ... I chose the option for a white background for the organiser, and I'd like to change it to grey/dark.

In XnView MP (the preferred software now) or the original XnView Classic?