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<?php

//filter Closed symbol example
function themeprefix_slicknav_custom_symbol( $data ) { 
	$data['ng_slicknav']['ng_slicknav_closedsymbol'] = '&#9679;' ; 
return $data; 
} 
add_filter( 'ng_slicknav_slickNavVars', 'themeprefix_slicknav_custom_symbol' );


//filter logo conditionally
function themeprefix_slicknav_custom_image ( $data ) { 
	if( is_home() ) : 
		$data['ng_slicknav']['ng_slicknav_brand'] = 'http://mynewlogo.com/images/newimage.png'; 
		return $data; 
	else: 
		return $data; 
	endif; 
} 
add_filter( 'ng_slicknav_slickNavVars', 'themeprefix_slicknav_custom_image' );


//filter label
function themeprefix_slicknav_custom_label( $data ) {
 $data['ng_slicknav']['ng_slicknav_label'] = 'New Label';
 return $data;
}
add_filter( 'ng_slicknav_slickNavVars', 'themeprefix_slicknav_custom_label' );