For example in 750 the icon in SE24 for doing an F4 search help is now a magnifying glass rather than a white square with a grey square behind it like you get in 702.
Neither of those ICONS screams out "search" to me, the magnifying glass denotes "detail" of an already selected object, so why bother replacing one misleading icon with another misleading icon when there are actual broken things that could be fixed?