def setup
  @slider = createSlider(0, 255, 100)
  @slider.position(10, 10)
  @slider.style('width', '80px')
end

def draw
  val = @slider.value
  background(val)
end

def setup
  colorMode(HSB)
  @slider = createSlider(0, 360, 60, 40)
  @slider.position(10, 10)
  @slider.style('width', '80px')
end

def draw
  val = @slider.value
  background(val, 100, 100, 1)
end