app/code/community/Adyen/Payment/Block/Adminhtml/System/Config/Fieldset/Method.php
protected function _getHeaderTitleHtml($element)
    {
        $html = '<div class="entry-edit-head collapseable" ><a id="' . $element->getHtmlId()
            . '-head" href="#" onclick="Fieldset.toggleCollapse(\'' . $element->getHtmlId() . '\', \''
            . $this->getUrl('*/*/state') . '\'); return false;">';

        $html .= ' <img src="' . $this->getSkinUrl('images/adyen/logo.png') . '" height="20" style="vertical-align: text-bottom; margin-right: 5px;"/> ';
        $html .= $element->getLegend();
        if ($this->_isPaymentEnabled($element)) {
            $html .= ' <img src="' . $this->getSkinUrl('images/icon-enabled.png') . '" style="vertical-align: middle"/> ';
        }

        $html .= '</a></div>';
        return $html;
    }
protected function _getHeaderTitleHtml($element)
    {
        $html = '<div class="entry-edit-head collapseable" ><a id="' . $element->getHtmlId()
            . '-head" href="#" onclick="Fieldset.toggleCollapse(\'' . $element->getHtmlId() . '\', \''
            . $this->getUrl('*/*/state') . '\'); return false;">';

        $html .= ' <img src="' . $this->getSkinUrl('images/adyen/logo.png') . '" height="20" style="vertical-align: text-bottom; margin-right: 5px;"/> ';
        $html .= $element->getLegend();
        if ($this->_isPaymentEnabled($element)) {
            $html .= ' <img src="' . $this->getSkinUrl('images/icon-enabled.png') . '" style="vertical-align: middle"/> ';
        }

        $html .= '</a></div>';
        return $html;
    }
protected function _getHeaderTitleHtml ( $ element ) { $ html = '<div class="entry-edit-head collapseable" ><a id="' . $ element -> getHtmlId ( ) . '-head" href="#" onclick="Fieldset.toggleCollapse(\'' . $ element -> getHtmlId ( ) . '\', \'' . $ this -> getUrl ( '*/*/state' ) . '\'); return false;">' ; $ html .= ' <img src="' . $ this -> getSkinUrl ( 'images/adyen/logo.png' ) . '" height="20" style="vertical-align: text-bottom; margin-right: 5px;"/> ' ; $ html .= $ element -> getLegend ( ) ; if ( $ this -> _isPaymentEnabled ( $ element ) ) { $ html .= ' <img src="' . $ this -> getSkinUrl ( 'images/icon-enabled.png' ) . '" style="vertical-align: middle"/> ' ; } $ html .= '</a></div>' ; return $ html ; }
Return header title part of html for payment solution

@param Varien_Data_Form_Element_Abstract $element
@return string
Return header title part of html for payment solution