Is this the same pattern? If so, why is there a grey border around the whole pattern?
https://www.ldraw.org/cgi-bin/ptdetail.c...200phb.dat
https://www.ldraw.org/parts/official-par...tid=973phb
https://www.ldraw.org/cgi-bin/ptdetail.c...200phb.dat
https://www.ldraw.org/parts/official-par...tid=973phb