How can I change the diplay
I have already found and used the accessibility on this machine. On my 2011 MacBook Pro I was able to dictate the minimum type size (14) for the display of most things and most things were displayed as black on white. On this machine even having applied the very nearly maximum contrast mostly stuff is displayed in grey in white - in other words next to invisible. Even when I zoom to size that I can read, if I have 2/3 pages open at once I cannot see the lines that distinguish which page is which. Can I change the basic setting for contrast and type size?
MacBook Air 13″, macOS 10.12