Color In Balthazar Bratt

The film does not only use the contrast of colors to convey the general happy mood, but also it uses color as the footnote to identify characters. For example, the villain of the film, Balthazar Bratt, always dresses in purple. Whenever he appears into the frame in the film, the background turns purple too, sometimes along with the use of large area of pink, which is the color of his weapon: chewing bubble gum. Therefore when watching the film, if one sees purple, or the use of combination of pink and purple together in the scenes, one can almost certainly identify that it is next the scenes for Balthazar Bratt. Purple is a color that people associates with creepiness, some criminal films uses purple background to make the mood frightening.
Therefore although an animation, the film still chooses purple when it is depicting criminal related scenes.