I have an older application that has a specific appearance based on NSCell-based NSTableView having Source List highlighting. Unfortunately, on Yosemite this adds the NSVisualEffectView vibrancy under the selected cell which breaks the appearance in an unpleasant way.
I can't find a way to opt-out of this behaviour, unfortunately. Setting Regular highlighting breaks the appearance in another way (grey selection instead of blue).
Any idea if there is a way to opt-out of this behaviour on 10.10?