I think there should be a color attribute when uploading logo's. Most often, logo's are designed in both a colored variant and a white variant. The white variant's are much more predictable and as such easier to make designs around (such as an app design that displays movies and their logos). A single attribute like "colored" or "white" would be really useful, so that if someone is only interested in white logo's or would prefer white logo's, they can more easily query the api. Otherwise we'd have to download all available logo's and then programmatically determine dominant colors etc...