Fade between random colours for a background

[glv]

Hello @locky.mcdonald,

Related:
https://discourse.processing.org/t/ball-moving-linear-and-cosinusoidal/15209

Focus on this:

@glv

//modulated cosinusoidal
  if (true)
    {
    count = 1-(0.5*cos(theta) + 0.5);

You can also make it sinusoidal.

:)