It is a Class B misdemeanor which has a range of punishment of up to 6 months in jail and up to a $2,000 fine. If your "friend" was on deferred adjudication, her record may be able to be sealed as well.
As noted above it's a Class B misdemeanor. It's hard to tell from your post if you have been to court for this charge, or if the probation and 24 hrs community service was from another charge, but if you can fight this charge you should. A theft conviction, even if only a Class B is still a theft conviction and will interfere with your ability to get a job in the future and will haunt you for many years. If you can afford an attorney, the investment in yourself will be well worth in the years to come.