I'm new to processing. My question is about random color.I'm having this code in my void draw:

1. ...
   
   void draw() {
       background(0);
      
       fill(255,0,255);
       rect(mouseX,390,10,10);
      
       for(int i=0; i<10; i=i+1) {
         fill(random(255),random(255),random(255));
         stroke(0);
         int ellipseX = 20;
         int ellipseY = 20;
         ellipse(ellipseX+i*40, ellipseY,40,40);
       }
   
    ...

the rectangular should track the mouse, that's why i set the background at the beginning to avoid. but i dont want the circles on the top to "bling". the random color should load only once and then the circles should keep this colors. i hope you understand what i mean :)

thank you!