General SMS appearance change

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http://androidforums.com – Hello, I'm sure a few will have asked this question, but I can't find any solution on here so here goes. Samsung Galaxy Ace GT-S5830. I once changed the appearance of my text messages, meaning, the colour/shape of the bubble and the background to like a note pad style, this looked much better. However, I have since had to factory reset my text app(standard android app) due to problems and my text appearance has reverted back to normal. I cannot find the same settings in order to change it back again, does anyone know how to change this? Or has an update taken the option away? Thanks (General)