Silver
ZZ / nZ
Silver only appears on black-based coats (genos starting with EE or Ee); horses with chestnut-based coats (ee) can carry silver but won't show it.
Appearance
Silver affects the mane and tail, lightening it anywhere from just slightly lighter (brown or grey) to pure white.
Can be darker at the roots, or a solid color throughout.

Silver black
black + silver

Silver bay
bay + silver

Silver bay
bay + silver

Silver buckskin
bay + cream + silver
Optional effect: Body silvering
Silver can optionally fully or partially lighten the body coat as well, generally affecting the black-pigment areas and lightening them into a soft brown or grey.

Silver black
black + silver

Silver buckskin
bay + cream + silver

Silver seal bay
seal bay + silver