Animatics are animation tests from early in an episode's production. They feature rough animation drafts, placeholder audio (known as scratch vocals), and typically use only black and white colors. It also might have cut or different animation than the final product. There are several Team Umizoomi animatics available to watch online.
In order to distinguish who is speaking in a scene, some animatics have colored boxes with 1 or 2 letters in them. Each important character has a different color and letters associated with them.
Here is a list of all known characters who have one:
