'text-success-400');
        flashTextStep.classList.remove('text-error-400');
    }
    async function flash({ signal } = {}) {
        initTextStep();
        let port;
        try {
            port = await navigator.serial.requestPort();
        } catch (err) {
            showError(`Error: ${err.message}`);
            console.log(`Error: ${err.message}\n`);
            return;
        }
        if (!port) {
            showError('Error: port not open');
            console.log('Error: port not open\n'