After importing a .shp-file in BlenderGIS (Blender 3.6.2 and BlenderGIS 2.2.10) with correct crs, the orange dot (?) has a location, which is not in the world-origin.

1 (green). How and for what is that orange dot calculated (in the items panel location x,y,z)?
2 (blue). By the way how is the placement of the imported geometry in the world-origin calculated (the coordinates in the blender properties under custom properties points exactly on the world-origin)?

I thougt the orange dot is the center of mass. But when go to Object -> Set Origin -> Geometry to Origin -> Bounds Center the position of the geometry changed but the orange dot is on the same location (in order to the world-origin).