# Draws a smooth color gradient from black to white.

from DrawingPanel import *

RECTS = 32   # constant for number of rectangles

def main():
    panel = DrawingPanel(256, 256)
    panel.background = (255, 128, 0)   # orange

    # from black to white, top left to bottom right
    for i in range(RECTS):
        c = i * 256 // RECTS
        panel.fill_rect(c, c, 20, 20, (c, c, c))

main()