It is normal to have lines on the back of the gold gradient layer. If the lines are very deep, it only means that the quality is not good, or it may be golden tabby. The underlying hair of a normal golden gradient is light yellow, and then the color gradually deepens to the tip of the hair. The tip of the hair is black, and the eyes are green or blue-green. But no matter what appearance they are, as long as they are raised, they must be treated well. Every cat is very cute.