ZTE Concord / Midnight

Overall I like this phone. Except for the texting ap. Is there anyway to change my icon from the android icon to something personal? Secondly, is there a way to change the overall style of the texting ap? I switched from a Dart, which could easily do that. For instance, mine looked very similar to the iPhone texting ap. These are obviously not earth shattering issues, and in the scheme of things, do not negatively affect my opinion of the phone.