I do not know how many iterations of the standard Metro launcher MINIX have had but maybe it time for a change to freshen up the GUI desktop. Android TV for example has dynamic backgrounds depending on the Recommendations selected. Some GUI launchers have Bing pictures of the day in the background to keep life interesting - or user selectable custom pictures. A pretty easy change for MINIX to do would be something like this, with a nice Glass Panel mod to their existing Metro launcher. This uses the Firepaper 2.71 .apk to change backgrounds.