code: public function renderWidget( $config = [] ) {
  
  		// Default background class defined in css as - .bkg-block { background-image: url(<image url>) }
  		if( $this->bkg && !isset( $this->bkgUrl ) && !isset( $this->bkgClass ) ) {
  
  			$this->bkgClass	= 'bkg-block';
  		}
  
  		$widgetHtml = $this->render( $this->template, [ 'widget' => $this ] );
  
  		// Wrap the view
  		if( $this->wrap ) {
  
  			return Html::tag( $this->wrapper, $widgetHtml, $this->options );
  		}
  
  		return $widgetHtml;
      }
docs: CMG parent classes --------------------