What term describes a background that appears as a grainy, non-smooth surface?

What term describes a background that appears as a grainy, non-smooth surface?

کون سی اصطلاح اس پس منظر کو بیان کرتی ہے جو دانے دار، غیر ہموار سطح کے طور پر ظاہر ہوتا ہے؟
Explanation

In Excel, Texture describes a background that appears as a grainy, non-smooth surface.

This tab shows a number of different surface textures that can be used to fill in the drawing object.