def METHOD_NAME(node):
    if node.is_leaf:
        node.img_style['size'] = 0
    else:
        node.img_style['size'] = 0
        node.img_style['shape'] = 'square'
        if len(MIXED_RES) > 1 and hasattr(node, "tree_seqtype"):
            if node.tree_seqtype == "nt":
                node.img_style["bgcolor"] = "#CFE6CA"
                ntF = TextFace("nt", fsize=6, fgcolor='#444', ftype='Helvetica')
                add_face_to_node(ntF, node, 10, position="branch-bottom")
        if len(NPR_TREES) > 1 and hasattr(node, "tree_type"):
            node.img_style['size'] = 4
            node.img_style['fgcolor'] = "steelblue"
    node.img_style['hz_line_width'] = 1
    node.img_style['vt_line_width'] = 1