[ HOW NES BACKGROUNDS WORK ]

THE SCREEN IS 30 ROWS OF 32
TILES, EACH 8 BY 8 PIXELS.
A PICTURE CAN USE UP TO 256
DIFFERENT TILES.

EACH 2 BY 2 TILE AREA CAN
USE ONE OF FOUR COLOR SETS
IN THE PALETTE. ALL COLOR
SETS HAVE THREE COLORS PLUS
A SHARED BACKGROUND COLOR.

[ BUTTONS FOR DRAWING ]

CONTROL PAD: MOVE CURSOR
A: PLACE TILE; B: PICK UP
B B: CHANGE COLOR SET
SELECT+CONTROL PAD:
  QUICKLY SELECT A TILE
SELECT: BACK TO TILE PICKER


PRESS A
