Cyclical schemes topic

To create a cyclical continuous color scale using the Rainbow color scheme:

final color = ScaleSequential(interpolator: interpolateRainbow);

Functions

interpolateRainbow(num t) String Cyclical schemes
Given a number t in the range [0,1], returns the corresponding color from interpolateWarm scale from [0.0, 0.5] followed by the interpolateCool scale from [0.5, 1.0], thus implementing the cyclical less-angry rainbow color scheme.
interpolateSinebow(num t) String Cyclical schemes
Given a number t in the range [0,1], returns the corresponding color from the “sinebow” color scheme by Jim Bumgardner and Charlie Loyd.