Maybe a small piece of duct tape in her backpack to cover the logo if it becomes a big deal. Take the issue up later, don't put her in a spot that she has to argue with adults and authority figures. She may be mature, bright and smart, but probably out of her league against a group of adults.
If she does have an issue, then you can address it at an appropriate time in a mature fashion.
If she does have an issue, then you can address it at an appropriate time in a mature fashion.