Client start display

I have a little problem. When a client starts Xibo sometimes it appears an image with a logo of Xibo on a black screen (it is not the default layout). I saw that also appears when a client has to download content like images. I want to change it with a black screen. Thank you!

So that would be a splash screen.

You can change it locally on your device, please open Xibo Player Options, go to advanced tab and look for this field:

As a side note, we always recommend some simple, not often changed layout set as a default layout for your displays and more complex layouts scheduled to display.
This way if more complex layouts are being downloaded or if there is something wrong with them, your client will show default layout instead of a splash screen.