macgyer\yii2materializecss\widgets\Progress::init PHP Method

    public function init()
    {
        parent::init();
        Html::addCssClass($this->options, ['widget' => 'progress']);
        Html::addCssClass($this->progressOptions, ['type' => $this->type]);
        if ($this->type === 'determinate') {
            Html::addCssStyle($this->progressOptions, ['width' => $this->value . '%']);
        }
    }