trihedron can get too hard to see many time. should have the ability ot make it bigger (without making the graphics font bigger!)
If you think this is not a problem, try a 4K monitor. It would be nice to be able to turn the trihedron off as well.
Icon's need to be bigger as well.
As a side note, the icon size on high DPI is fixed in 2018 R1...where small and large toolbars will now be of similar sizes to when you are on a normal DPI system.
Customer support service by UserEcho