Rexes with unders are rumored to be reserved since they refused to show their bellies when they were given their colors. However, this also means they have strong principles.


Marking Rarity

Marking Layering

Marking Colors



Marking Edges

Symmetry Rules


  • Unders must be one solid marking, with no breaks or holes.
  • Under's edges cannot be too complicated. Make sure they look natural.
  • As long as the coverage of the marking is a similar size to the minimum range, it can travel within the boundary area, but should still connect to the minimum coverage area somewhere.
  • This marking must start from the middle line of the rex and spread outwards.


Copy paste these images directly into your art program over your design and set them to multiply for the best work effect.
Alternatively you can download the boundary PSDs with the marking boundaries!






Unders is a solid making that appears on the underside of a Rexal.


Unders cannot have holes or separate patches.



Unders cannot have unnaturally shaped edges.



Unders can sport a gradient that can show both: darker AND lighter than the base coat, when dominant.
However, the gradient cannot use another slider unless you use a color modifier!



Player Owned Examples