PFont font;
color bri = 255;
float fade = 0;
void setup(){
  size(800, 600);
  colorMode(HSB);
  noCursor();
  noStroke();
  font = loadFont("HelveticaNeueLT-Black-68.vlw");
}
void draw(){
  fill(map(mouseX, 0, width, 0, 255), map(mouseY, 0, height, 0, 255), bri);
  rect(-1, -1, width+1, height+1);
  loadPixels();
  color col = color(pixels[mouseY*width+mouseX]);
  if(keyPressed){
    if(key == CODED){
      if(keyCode == DOWN && bri > 0){
        bri--;
      }
      else if(keyCode == UP && bri < 255){
        bri++;
      }
    }
  }
  if (bri <= 128){ 
    fade = 255;
  };
  if (bri >= 128){
    fade = 0;
  };
  textFont(font);
  fill(fade);
  text("The color is #"+ hex(col, 6), 8, (height*0.5));
  
}