Till AX 2009 there was only one way for us to use the AOT resources for specifying on menus or menu items or buttons and that was using SysResources class and call while application start to set in various places. But with this small change in Ax 2012, MS has provided a very good small change to use AOT resources in these places.
MS has provided a drop-down ImageLocation and added an option “AOT Resource”. Once we select this option, we can specify the resource name that needs to be used.
Check this out
Nice little change MS.