About 3d views and diocm

I don’t know what I accidentally changed, but when I added a scene and showed dicom, it was translucent like this…
Another question, I want to hide this purple box that wraps the model, is there a way to hide it

hide box
viewNode = slicer.util.getNode(‘vtkMRMLViewNode1’)

You can try this to make the slices opaque again:

y = getNode('Yellow Volume Slice')