captaincook, let me answer in English.

Version 2.6 of the plug-in, takes into account these 2 updates of Sweet Home 3D 7.2:

• Fixed textures transparency in YafaRay rendering
• Managed user-defined properties defined in [font=courier new]com.eteks.sweethome3d.additionalFurnitureProperties[/font] System property

For the new lights library, the [font=courier new]lightSourceDescription[/font] property is used for variable lights (daylight or automatic) instead of the Description field.
With version 2.5.1 of the plug-in, the risk was that these variable lights would no longer be taken into account if the user changed the Description field.

Non-variable lights from the old library can be used with version 2.6 of the plug-in.

Since version 2.5 of the plug-in, the lights library uses the [font=courier new]lightSourceMaterialName[/font] property.