Skeckulous

Tron was an influential movie for me as a child. It helped to humanize computers and, much like The Wizard, made gaming cool (notice a tinge of sarcasm there).
The world, in part created by Syd Mead, was a vision to behold. It had a clear simple futuristic style, that lead itself to some beautiful images. One part of that world inspired me to think about my world. The little bit:

The bit was a simple creature which showed it's emotions and responses with a simple yes or no and changing shape and color. This made me wonder, what if a whole world was created with similar creatures. Shape, color, and sound would change according to emotion and communication.
Then there could also be different styles according to the general culture of these creatures. If the were more warlike then their style would be more angular and sharp. The more peaceful would be rounder and softer. Music would change accordingly and emotions would mix with color. In many ways this would be a form of synthesia, and would require that type of ability (to link emotions to colors, shapes, and sounds).