Learn how to download and apply the
I guess it's a shading test skin for Minecraft on PC (Java Edition) or Pocket Edition (PE).
PC (Java Edition):
This particular I guess it's a shading test skin has thick (4px) arms. It is based on the classic Steve model.
This particular Minecraft I guess it's a shading test skin has the following color palette:
Heliotrope
Medium Purple
Purple Heart
Perfume