Can you change the tint on the submesh material?

When you use the <sprite> tag, it seems to use a TMP_SubMeshUI class. I need to change the tint on the sprite to grey out unavailable option, but I have not figured out how to do that. Changing the color variable (inherited from MaskableGraphic class), it doesn’t actually change the color. I’ve also tried to change the material color directly, but that doesn’t seem to work either. Is changing the color even possible?