cell_val = ref_grid[ y ][ x ]

            if cell_val == 0:
                my_color = r_color
            if cell_val == 1:
                my_color = s_color
            if cell_val == 2:
                my_color = i_color
            if cell_val == 3:
                my_color = w_color

            pygame.draw.rect( my_screen , my_col , ( g_x + b_width * x , g_y + b_height * y , b_width , b_height ) , 0 )