99.9% of the packages sold are custom designed. The process will start with several drawings, and be customized using the customers input. One area that is important is the sponsor areas.
I always try to leave a clean section on the Q-panel, and door for 12x30 sponsor ads. If your car is multi-color, the package colors will be adjusted to fit that panel. Example: if the sides are white with a red roof, the roof number would have a white outline.