New
#31
smaller 100% (default)
medium 125%
larger 150%
very large 200%
gigantic above 200%
custom (user defined)
Here is a nice test in practice:
640x400 @100% DPI = 1920x1200 @300% DPI
(well, equal from the item-scale point of view; not the pixels; display gfx stretching should be enabled for the low res)
Click image to play animation, each of both frames is shown for 3 seconds:
Notice the sharpness on high DPI but they're both practically the same from a distance.
The screen is in the end the same for two resolutions of same ratio, the second being actually the less pixelated version of the first.
I got weird values as well there, the one saying 175% is obviously inactive and wrong (a bug...)
Text size can be changed, see here:
Icons Text Size - Change in Windows 10 - Windows 10 Forums
Besides icons, you see titles and other options.