Turn off via global config through app.config.js
rippleEffect: true, // material design effect that appears on all buttons
Script that turns on the plugin in app.core.js
if (window.Waves && myapp_config.rippleEffect) {
Waves.attach('.nav-menu:not(.js-waves-off) a, .btn:not(.js-waves-off):not(.btn-switch), .js-waves-on', ['waves-themed']);
Waves.init();
...
}