Looking for something totally different?!? The "cracked ice" effect is a very interesting way to blend two different colors on a system. The cracking is produced by a chemical additive put over a base color that hardens, and then "cracks" a second color, revealing the base. The result is a very organic effect, which can be either very subtle, or in this case very striking. It all depends on which two colors you choose to use and how much contrast there is between them.