A locus is the location of the gene, and an allele is a mutation form of that location. So each locus has at least two alleles (forms) when we are discussing mutations.
One locus is the black locus. It has extended black, fawn, recessive black, wild type and (i believe) lethal yellow is also on this locus.
A separate locus is sex linked, with a wild type, dark brown and roux dilute allele.
There are also white/mottled, lavender, silver, albinism, and others that or on other loci or not studdied propperly.
Many of these mutations are incomplete dominant, meaning they make a large effect with one single dose, and a complete form in double dose (fawn=italian/manchurian) (extended black= rosetta/tibetan).

Sex linked genes:

Brown:
Sex linked reccesive
Paler Pharoah

Roux:
Sex linked reccesive
Even paler than brown
Chicks can be told apart from pharoah at hatch.

Cinnamon:
Sex linked reccesive
Extremely pale.
Red eyes
Chicks can be told apart from pharoah at hatch.

Ghost:
Sex linked reccesive.
Half way between cinnamon and albino in colour.
Red eyes.
Chicks can be told apart from pharoah at hatch.

Albino:
Sex linked reccesive.
Pure White.
Red eyes.
Chicks told apart from pharoah at hatch.

Autosmal Genes:

Fawn:
Autosomal incomplete dominant.
Hetrozygous =Italian
Homozygous =manchurian

EB (Extended Black):
Autosomal incomplete dominant
Hetrozygous = Rosetta
Homozygous = tibetan
Often white bibs.
Dark skin.

Rec black:
Autosomal reccesive.
Looks like EB but hetrozygous does not show any differance from pharoah.
No white bib.
Pale skin.

Pansy:
Autosomal reccesive.
Similar to fawn but more splodges markings and dark head.

Lethal yellow:
Autosomal incomplete dominant.
Hetrozygous = yellow
Homozygous = dead in shell.
Heavily marked fawn appearance.
More barring than fawn.

Silver:
Autosomal incomplete dominant.
Hetrozygous = silver pied.
Homozygous = snow white.

Lavender:
Autosomal reccesive.
Pale grey in homo form.
Some red tones on neck.

Andalusian:
Autosomal incomplete dominant.

Dotted White:
Autosomal incomplete dominant.
Hetrozygous = tuxedo.
Homozygous = english white.
Hetrozygous markings vary depending on Base
Homo is white but can have patches of colour on wings or back.

Fee:
Autosomal incomplete dominant
Removes red tones.

Currently named colours:
Wild type – pharaoh.
Roux-dilute wild type – Egyptian.
Heterozygous extended black – rosetta.
Homozygous extended black – tibetan.
Heterozygous extended black + roux – Scarlett
Homozygous extended black + roux – range.
Heterozygous fawn – italian.
Homozygous fawn – Manchurian.
Homozygous fawn + roux – autumn amber.
Homozygous fawn + roux – Amber Manchurian
Wild type lavender – lavender.
Wild type lavender + roux – le creme.
Homozygous silver – snow white.
Homozygous pansy – pansy

Comment made by Martin Yardley in the Coturnix Quail-Colours and Genetics group on Facebook – The question asked was if there is a definitive list of quail color patterns

https://www.facebook.com/groups/550750305134029/permalink/1113084628900591/