Hey everybody!
I made some code that was supposed to cycle through the color saturations of Red, but when I run it, the screen just stays grey. Nothing happens! Please help!
Code:

1. void setup() {
     size(480, 480);
   }
   
   
   void draw() {
     for (int i = 0; i < 256; i++) {
       fill(i, 0, 0);
       rect(240, 240, 50, 50);
       delay(500);
     }
   }
   

Hello everyone!
I just became interested in Processing, and love it!
I need to know more, and was wondering if there is a book or youtube series that is good.
Please reply!

-Re3d125