Love colour customization for bike frame,
but black and white colour doesn’t included.
Especially rode a custom colour Trek Madone project one in Zwift,
i believe it will motivate rider more.
Also some custom picture/ logo/ wording/ number can added on frame,
it would be fun ! Just like [need for speed - underground 2]
More generally, available colors are limited, because color spaces with human eyes have 3 degrees of freedom: for example, hue, saturation, and value, or else red, green, and blue. However, for the frame, only hue can be adjusted. I’d prefer a darker green than what is available, but that’s not possible.
So before allowing multi-colored options, just getting one color right would be an improvement.