/* 6.914, Example 0.2

There are two ways to make colors. 

If you only want shades of grey,
use a single argument - one number between 0 and 255. You will
get a color between black and white.

0 -- black
100 -- dark grey
200 -- light grey
255 -- white


If you want to use RGB colors, use three numbers in the range [0,255]: 
one for red, one for green, and one for blue. 

0, 0, 0 -- black
100, 100, 100 -- dark grey
255, 255, 255 -- white

255, 0, 0 -- red
0, 255, 0 -- green
0, 0, 255 -- blue

255, 255, 0 -- yellow
255, 0, 255 -- pink
0, 255, 255 -- cyan

*/


void setup(){
  
  size(300, 400); // window is 300 x 400.
  
  background(0); // this will give you a black background.

}