It may be that it is a background image that was added. If this is the case, you will want to do the following:
- Select the image on the template and select Unlock Background on the left side
- Then select Change Color and choose the color you want. Your cursor will turn into a paint bucket
- Now select part of the image you want to change the color of
- You will want to use the white circles around the image to resize it to fit the template again
- Finally, select Arrange at the top of customize and select Send to Back