code: public Color addToCopy(Color c) {
  		Color copy = new Color(r,g,b,a);
  		copy.r += c.r;
  		copy.g += c.g;
  		copy.b += c.b;
  		copy.a += c.a;
  		
  		return copy;
  	}
docs: Add another colour to this one
  
  @param c The colour to add
  @return The copy which has had the color added to it