Additional comments

vgasquare.v

@@ -12,7 +12,7 @@ module vgasquare(
 	input wire [9:0] box_x2,
 	input wire [8:0] box_y1,
 	input wire [8:0] box_y2,    
-	input wire [5:0] box_color, //1 bit for each color  Foreground and background
+	input wire [5:0] box_color, // 1 bit for each color RGB  Foreground (bit 0,1 and 2) and background (bit 3,4 and 5)
     output wire VGA_HS,         // horizontal sync output
     output wire VGA_VS,         // vertical sync output
     output wire VGA_R,    	    // 1-bit VGA red output