GraphicTShirt determines the
ShirtGraphic/Graphic|Graphic used by a
Humanoid/ApplyDescription|applied to a
Humanoid. The asset type must be for a T-Shirt and not a Decal or Image.
articles/HumanoidDescription System, for more information on HumanoidDescriptions
HumanoidDescription/Shirt|Shirt, which can provide the same functionality in addition to providing textures for the entire torso and arms
HumanoidDescription/TorsoColor|TorsoColor, which can change the color of the torso underneath the t-shirt texture