void setup(){ size(500,500); frameRate(20); } void draw(){ fadeToWhite(); fill(mouseX + mouseY,0,0); stroke(0); ellipse(500/2,500/2,mouseX,mouseY); } void mousePressed(){ fill(0); triangle(500/2,500-100,500/2 + 100,500,500/2 - 100,500); vo…