Controlling RGB LED Using Processing IDE

import processing.serial.*; //import the serial library
Serial myPort;  // Create object from Serial class
int redCircleX, redCircleY;  // Position of red circle button
int greenCircleX, greenCircleY;  // Position of green circle button
int blueCircleX, blueCircleY;  // Position of blue circle button
int whiteCircleX, whiteCircleY;  // Position of white circle button
int yellowCircleX, yellowCircleY;  // Position of yellow circle button
int magentaCircleX, magentaCircleY;  // Position of magenta circle button
int circleSize = 93;   // Diameter of circles
String portName = "COM31"; //change this
color red, green, blue, white, yellow,magenta;
color lightRed, lightGreen, lightBlue, gray, lightYellow,lightMagenta;
boolean redCircleOver,greenCircleOver,blueCircleOver,whiteCircleOver,yellowCircleOver,magentaCircleOver;
void setup()
  {
  myPort = new Serial(this, portName, 921600);
  myPort.write("\r");
  redCircleOver = greenCircleOver = blueCircleOver = whiteCircleOver = yellowCircleOver = magentaCircleOver = false;
  size(640, 360);
  noStroke();
  background(13, 28, 30);
  red = color(255,0,0);
  green = color(0,255,0);
  blue = color(0,0,255);
  white = color(255,255,255);
  magenta = color(255,0,255);
  yellow = color(255,255,0);
  
  gray = color(211,211,211);
  lightRed = color(255,100,100);
  lightGreen = color(190,255,190);
  lightBlue = color(190,190,255);
  lightYellow = color(190,190,0);
  lightMagenta = color(255,100,255);
  
  redCircleY = greenCircleY = blueCircleY = height/3;
  whiteCircleY = yellowCircleY = magentaCircleY = 2*height/3;
  redCircleX = whiteCircleX = circleSize + 20;
  greenCircleX = yellowCircleX = redCircleX + 200;
  blueCircleX = magentaCircleX = greenCircleX + 200;
  ellipseMode(CENTER);
  }

void draw()
  {
    stroke(0);
    update(mouseX, mouseY);
    if (redCircleOver){
    fill(red);
  } else {
    fill(lightRed);
  }
     ellipse(redCircleX, redCircleY, circleSize, circleSize);
    if (greenCircleOver){
    fill(green);
  } else {
    fill(lightGreen);
  }
    ellipse(greenCircleX, greenCircleY, circleSize, circleSize);
    if (blueCircleOver){
    fill(blue);
  } else {
    fill(lightBlue);
  }
     ellipse(blueCircleX, blueCircleY, circleSize, circleSize); 
     
    if (whiteCircleOver){
    fill(white);
  } else {
    fill(gray);
  }
  ellipse(whiteCircleX, whiteCircleY, circleSize, circleSize); 
    
    if (yellowCircleOver){
    fill(yellow);
  } else {
    fill(lightYellow); }
    ellipse(yellowCircleX, yellowCircleY, circleSize, circleSize); 

   if (magentaCircleOver){
    fill(magenta);
  } else {
    fill(lightMagenta); }
    ellipse(magentaCircleX, magentaCircleY, circleSize, circleSize); 
 
  
  }
  
  
  void update(int x, int y) {
  if ( overCircle(redCircleX, redCircleY, circleSize) ) {
    redCircleOver = true;
    greenCircleOver = false;
    blueCircleOver = false;
    whiteCircleOver = false;
    yellowCircleOver = false;
    magentaCircleOver = false;
  }
  else  if ( overCircle(greenCircleX, greenCircleY, circleSize) ) {
    redCircleOver = false;
    greenCircleOver = true;
    blueCircleOver = false;
    whiteCircleOver = false;
    yellowCircleOver = false;
    magentaCircleOver = false;}
  else if( overCircle(blueCircleX, blueCircleY, circleSize) ) {
    redCircleOver = false;
    greenCircleOver = false;
    blueCircleOver = true;
    whiteCircleOver = false;
    yellowCircleOver = false;
    magentaCircleOver = false;}
  else if( overCircle(whiteCircleX, whiteCircleY, circleSize) ) {
    redCircleOver = false;
    greenCircleOver = false;
    blueCircleOver = false;
    whiteCircleOver = true;
    yellowCircleOver = false;
    magentaCircleOver = false;}
  else if( overCircle(yellowCircleX, yellowCircleY, circleSize) ) {
    redCircleOver = false;
    greenCircleOver = false;
    blueCircleOver = false;
    whiteCircleOver = false;
    yellowCircleOver = true;
    magentaCircleOver = false;}
  else if( overCircle(magentaCircleX, magentaCircleY, circleSize) ) {
    redCircleOver = false;
    greenCircleOver = false;
    blueCircleOver = false;
    whiteCircleOver = false;
    yellowCircleOver = false;
    magentaCircleOver = true;}
  else {
    redCircleOver = false;
    greenCircleOver = false;
    blueCircleOver = false;
    whiteCircleOver = false;
    yellowCircleOver = false;
    magentaCircleOver = false;
    }
  }
boolean overCircle(int x, int y, int diameter) {
  float disX = x - mouseX;
  float disY = y - mouseY;
  if (sqrt(sq(disX) + sq(disY)) < diameter/2 ) {
    return true;
  } else {
    return false;
  }
}
void sendMSG(String msg){
  int strLenght = msg.length();
  for (int i = 0; i<strLenght; i++)
  {
    myPort.write(msg.charAt(i));
    delay(20);
  }
  myPort.write("\r");
}

void mousePressed() {
  if (redCircleOver) {
    sendMSG("color red 100");
  }
  if (greenCircleOver) {
    sendMSG("color gree 100");
  }
  if (blueCircleOver) {
    sendMSG("color blue 100");
  }
  if (yellowCircleOver) {
    sendMSG("color yellow 100");
  }
  if (magentaCircleOver) {
    sendMSG("color magenta 100");
  }
   if (whiteCircleOver) {
    sendMSG("color white 100");
  }
  
}