tube

</pre>
void setup(){
size(700,700);
background(16,40,10);}

void draw(){
strokeWeight(1);
ellipse(pmouseX,pmouseY,mouseX,mouseY);

if (keyPressed==true){
background(random(255), random(255),random(255));
fill(random(255), random(255),random(255));
stroke(random(255), random(255),random(255));}
}

void setup(){size(700,700);background(16,40,10);}void draw(){strokeWeight(1);ellipse(pmouseX,pmouseY,mouseX,mouseY);
if (keyPressed==true){background(random(255), random(255),random(255)); fill(random(255), random(255),random(255));stroke(random(255), random(255),random(255));}}