Builder: Add Classes to Modules

/**
 * Add classes to Builder modules
 *
 * Function name calling shouldn't be 'it_builder_loaded'
 * in case parent theme is using it already.
 */
if ( ! function_exists( 'oz_builder_loaded' ) ) {
function oz_builder_loaded() {
	// -->                          module        label                           class
	builder_register_module_style( 'content',    'Blue ',                        'content-blue' );
	builder_register_module_style( 'widget-bar', 'Blue (full width)',            'widget-bar-blue' );
	builder_register_module_style( 'navigation', 'Subnav Blue',                  'subnav-blue' );
	builder_register_module_style( 'html',       'Blue Background',              'html-blue' );
	builder_register_module_style( 'image',      'Blue Background (full width)', 'image-blue');
	builder_register_module_style( 'header',     'White Header',                 'header-white');
	builder_register_module_style( 'footer',     'White Footer',                 'footer-white');
}
add_action( 'it_libraries_loaded', 'oz_builder_loaded' );
}