Get random colors from color matrix

random_color.pde

color[][] colors = {  {#f7f4e3,#f9c4aa}, 
                       {#fcd77f,#ff2e4c}
                       {#fcac0c,#ececec}
                    };

void mouseClicked() {
  
  // get random colorscheme 
  // (and guarantee it's a new colorscheme)
  random_index = (int)random(colors.length);
  while (random_index == current_index) {
    random_index = (int)random(4);
  }
  current_index = random_index;
  
  background(colors[random_index][0]);
  fill(colors[random_index][1]);
  stroke(colors[random_index][1]);
             
}