Ask the breeder for parent and grandparent photos of any animal you are considering. A reputable breeder will provide them.
The blue-bar question belongs to the lineage, not the photograph.
A blue lateral bar is the most photographed and most misunderstood trait in Ambilobe lineage. The trait sits in pedigree, not in any single image.

A keeper looking at Ambilobe panthers for the first time is presented with two visual archetypes. The red body with a blue lateral bar; the blue body, often labelled BBB. Both archetypes are real. Both are heritable. Neither is reliably predictable from a single juvenile photograph.
Coloration in Ambilobe panthers is the product of multiple loci interacting with developmental conditions in the first eighteen months of life. A male photographed at eight months in full display can show colors he will never produce again in adult settled posture.
Reputable Ambilobe breeders provide pedigree documentation on request. They expect the question. They will photograph the sire and dam at adult settled posture, in normal cage lighting, dated. They will provide grandparent photos as well.
DSQUARED Reptiles — Living Art. Curated Genetics.
From the field notes archive.
Color development month by month.
A panther male earns his color across nine months. A keeper who knows the order of operations is not surprised by what shows up at month five.
How we choose a breeding pair.
Locale match first. Health second. Coloration third. Disposition fourth. Reverse the order and you produce visually striking animals with shorter careers.
The week's schedule. May 10 → 16.
Every Sunday issue lays out the full seven days at the bench: what gets fed, what gets dusted, what gets adjusted. Print this and put it on the fridge.