FurnitureLibraryEditor-2.0 (since SweetHome3D-7.2) allows modification of light source properties.
In this case, displaying these same properties in the derived version is no longer of interest.

On the other hand, displaying a Light column is always useful to know directly which category a piece of furniture belongs to.

FurnitureLibraryEditor-2.0_derived.jar

FurnitureLibraryEditor-2.0-src_derived.zip