I use the taskbar vertically down the screen with Ungrouped icons. In windows 7, the background color of the taskbar itself was different from the background color of the buttons on it, so it was possible to see the gaps between the groups. in windows 10, there is still a small gap between the groups but because there's no difference in background color, it's not really possible to detect it just from the spacing
Is there any way to achieve this in Windows 10? It seems a pointless removal of functionality and it's really hurting my productivity at the moment.