src/Debug/Output/Script.php
protected function methodAlert($args, $meta)
    {
        $args = array('%c'.$args[0], '');
        $method = $meta['class'];
        $styleCommon = 'padding:5px; line-height:26px; font-size:125%; font-weight:bold;';
        switch ($method) {
            case 'danger':
                // Just use log method... Chrome adds backtrace to error(), which we don't want
                $method = 'log';
                $args[1] = $styleCommon
                    .'background-color: #ffbaba;'
                    .'border: 1px solid #d8000c;'
                    .'color: #d8000c;';
                break;
            case 'info':
                $args[1] = $styleCommon
                    .'background-color: #d9edf7;'
                    .'border: 1px solid #bce8f1;'
                    .'color: #31708f;';
                break;
            case 'success':
                $method = 'info';
                $args[1] = $styleCommon
                    .'background-color: #dff0d8;'
                    .'border: 1px solid #d6e9c6;'
                    .'color: #3c763d;';
                break;
            case 'warning':
                // Just use log method... Chrome adds backtrace to warn(), which we don't want
                $method = 'log';
                $args[1] = $styleCommon
                    .'background-color: #fcf8e3;'
                    .'border: 1px solid #faebcc;'
                    .'color: #8a6d3b;';
                break;
        }
        return array($method, $args);
    }
protected function methodAlert($args, $meta)
    {
        $args = array('%c'.$args[0], '');
        $method = $meta['class'];
        $styleCommon = 'padding:5px; line-height:26px; font-size:125%; font-weight:bold;';
        switch ($method) {
            case 'danger':
                // Just use log method... Chrome adds backtrace to error(), which we don't want
                $method = 'log';
                $args[1] = $styleCommon
                    .'background-color: #ffbaba;'
                    .'border: 1px solid #d8000c;'
                    .'color: #d8000c;';
                break;
            case 'info':
                $args[1] = $styleCommon
                    .'background-color: #d9edf7;'
                    .'border: 1px solid #bce8f1;'
                    .'color: #31708f;';
                break;
            case 'success':
                $method = 'info';
                $args[1] = $styleCommon
                    .'background-color: #dff0d8;'
                    .'border: 1px solid #d6e9c6;'
                    .'color: #3c763d;';
                break;
            case 'warning':
                // Just use log method... Chrome adds backtrace to warn(), which we don't want
                $method = 'log';
                $args[1] = $styleCommon
                    .'background-color: #fcf8e3;'
                    .'border: 1px solid #faebcc;'
                    .'color: #8a6d3b;';
                break;
        }
        return array($method, $args);
    }
Handle alert method

@param array $args arguments
@param array $meta meta info

@return array array($method, $args)