Extend PixelMenu with New Dropdown Animations Below is a snippet utilizing the custom developer api filter: pixelmenu_filter_default_dropdown_animations function prefix_extend_pixelmenu_animations($animations){ $animations['A Custom Animation Name'] = 'custom-animation-class'; return $animations; } add_filter('pixelmenu_filter_default_dropdown_animations', 'prefix_extend_pixelmenu_animations'); Did you find this answer helpful? 0 People Found This Helpful. Viewed 1340 times.