def METHOD_NAME(gc, width, height):
    gc.clear(white)
    fill_color = green[:3] + (0.4,)  # We want green, but with an alpha of 0.4
    gc.set_fill_color(fill_color)
    gc.rect(0, 0, width, height)
    gc.fill_path()
    gc.set_stroke_color(red)
    gc.move_to(0.0, 0.0)
    gc.line_to(width, height)
    gc.stroke_path()
    gc.set_stroke_color(blue)
    gc.move_to(0.0, height)
    gc.line_to(width, 0.0)
    gc.stroke_path()