Feathers Filling is a Marking that places a filling for the rooster's feather-like marking Feathers Lacing on the back of the waja. This is an exclusive marking that cannot be currently created by any means by regular users. Marking is featured as part of the Roosters Sub Breeds.
All examples feature wajas with the marking in FF0000 (pure red). However, this marking can come in any Hex Color as well as rainbow (simply put the word "RAINBOW" in the hex field) and chrome (simply put the word "chrome" in the hex field).