Almost positive that everyone is wrong.
When the join texture was created, I believe you made the star a transparent color, so the force/relax color behind it decides what color it is. Change the transparency to the solid white color and TA-DA!
Ninja'd, also I have no idea about join textures, so listen to jusmi. I guess you can't make it the solid white color. Changing it from white to transparent in my opinion is kind of dumb.