This trait is attached to horses that Carry Filigree.
Filigree is a white marking that appears as elegant swirls that branch out of other white markings, including free white.

Filigree is recessive; a horse needs to be homozygous with two copies of the gene (fefe) for it to be visible.
A carrier with only one copy of the gene (nfe) will not express Filigree.

Genotype: nfe
Locus:  Not shared with any known genes
Horses with 'nfe' will be noted as 'Carrying Filigree' but will not show the gene.

Expression of heterozygous (carried) Filigree:

• Coat: Not affected.
• Mane and Tail: Not affected.
• Skin: Not affected.
• Eyes: Not affected.
• Hooves: Not affected.