This allows you to extend or exaggerate features of a single trait. As long as it is a single trait, you can make the extensions appear any way you like.
Examples:

1) Insect Wings | 2) Tufted Tail | 3) Feathered Wings | 4) Leather Wings5) Maned (or default mane of Ungulate Snout) | 6) Aquatic Limbs | 7) Saurian Crest | 8) Segmented Tail
Color Rules
This will not affect the colors of the traits.
Modifier, Claw, Leather, and Crest Rules
This can only affect one trait at a time.
Charged Extensions
Charged Extensions allows you to add extensions to as many traits as possible.