(Q) how can I add more text bubble styles topic

Id like to use my stock sms app on my n900a that im using firenote on im having a hard time figuring out how to add or modify my stock text bubbles yellow and blue are cool but id rather have It just as a transparent bubble, you guys have been so helpful to me so I figured I should ask. I also did try searching but id rather not use gosms just to make ui changes.
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