Add ‘None’ as a possible background layer

[codinachssm]

Add ‘None’ as a possible background layer so that the user can decide not to activate any of the background layers available in the viewer. This is a functionality that we use a lot in SITMUN2.

[fjlopez]

It is possible to create a Background named "None" that has no content. Maybe it should be present in the default configuration. Could you test this possibility?

[codinachssm]

If the desired result is the same, yes, this is a possible solution.
The aim is that the user can select this option as a background map in the viewer but that it really does not incorporate any background map. I understand that it would be the same as you have described.
So for my part, I confirm that this would be a solution.
Thanks!