Oracle Visual Builder Cloud Service . Let's see how to to change the menu button icon in a mobile application in Oracle VBCS Assuming that you have an application and have added a menu button in your page. The default menu button will look like below when Menu Button is configured with icons. Now how to change this icon to a hamburger 3 line menu icon ? Many elements support defining style class for startIcon and endIcon slots. <oj-menu-button> have startIcon, endIcon slots Reference for this can be found here. http://www.oracle.com/webfolder/technetwork/jet/jsdocs/oj.ojMenuButton.html So we are going to use endIcon slot, as the arrow icon sits in endIcon slot. We need to give a style class here in the place of "myIconClass". Oracle JET provides many framework icons. Reference for that can be found here http://www.oracle.com/webfolder/technetwork/jet/jetCookbook.html?component=imagefwk&demo=fwk&mode=and_port We are going to...