[solved] Is there way to change expand button?

void CXTPPropertyGridVisualStudio2015Theme::DrawExpandButton(CDC& dc, CXTPPropertyGridItem* pItem, CRect rcCaption)
{
    if (!pItem->IsExpandable())
        return;

    CRect rcSign(CPoint(XTP_DPI_X(XTP_PGI_EXPAND_BORDER) / 2 - XTP_DPI_X(5), rcCaption.CenterPoint().y - XTP_DPI_Y(4)), 
        XTP_DPI(CSize(9, 9)));

    if (pItem->GetIndent() > 0)
        rcSign.OffsetRect((pItem->GetIndent() - (pItem->IsCategory() ? 0 : 1)) * XTP_DPI_X(XTP_PGI_EXPAND_BORDER), 0);

    CPoint pt(rcSign.right - XTP_DPI_X(6), rcSign.top);

    if(pItem->IsExpanded())
    {
        XTPDrawHelpers()->DrawExpandTriangle(&dc, pt, TRUE, m_pMetrics->m_clrFore);
    }
    else
    {
        XTPDrawHelpers()->DrawExpandTriangle(&dc, pt, FALSE, m_pMetrics->m_clrFore, m_pMetrics->m_clrBack);
    }
}