<?php
declare(strict_types=1);
$test->ffi->tb_init();
$y = 0;
$fg = 7;
$test->ffi->tb_printf(0, $y++, $fg, 0, "cyan (then gray after mode switch and invalidate)");
$test->ffi->tb_present();
$test->ffi->tb_set_output_mode($test->defines['TB_OUTPUT_GRAYSCALE']);
$test->ffi->tb_invalidate();
$test->ffi->tb_printf(0, $y++, $fg, 0, "gray");
$test->ffi->tb_present();
$test->screencap();