Dear All,

For your information only.

See also link description here - Hyperlink: https://community.wolfram.com/groups/-/m/t/1935623

Regards,....Jos

Here the complete information for my system:

I am running Wolfram|One Personal on a Lenovo ThinkPad laptop workstation W530 with a 1920x1080 Display under Windows 10 Pro in Germany.

In[218]:= SystemInformation["Kernel", "ReleaseID"]
Out[218]= "12.1.0.0 (6776260, 2020031901)"

In[219]:= SystemInformation["Devices", "ScreenInformation"]
Out[219]= {{"ScreenArea" -> {{0, 1152}, {0, 648}}, 
  "FullScreenArea" -> {{0, 1152}, {0, 648}}, "BitDepth" -> 32, 
  "Resolution" -> 120.}}

In[220]:= CurrentValue["ConnectedDisplays"]
Out[220]= {{"Region" -> {{0., 1152.}, {0., 648.}}, 
  "FullRegion" -> {{0., 1152.}, {0., 648.}}, 
  "PixelDimensions" -> {1920, 1080}, "BitDepth" -> 32, 
  "Resolution" -> 120., "Scale" -> 1.66667}}

In[221]:= Options[$FrontEnd, "Magnification"]
Out[221]= {Magnification -> 0.8}

The last Magnification setting is a bypass which was set by Options Inspector->Global Preferences->Notebook Options->Display Options->Magnification->0.80 or programmatically by:

SetOptions[$FrontEnd, "Magnification" -> 0.8]

In[3]:= SystemInformation["Kernel", "ReleaseID"]
Out[3]= "12.1.0.0 (6764119, 2020031402)"

My display is 1366 x 768

In[4]:= CurrentValue["ConnectedDisplays"]
Out[4]= {{"Region" -> {{0., 1366.}, {0., 738.}}, 
  "FullRegion" -> {{0., 1366.}, {0., 768.}}, 
  "PixelDimensions" -> {1366, 768}, "BitDepth" -> 32, 
  "Resolution" -> 72., "Scale" -> 1.}}

@Hans Milton

What product are you using and please share your release id as well by running the following command:

SystemInformation["Kernel","ReleaseID"]

Thanks, David. This Global Preference makes fonts, graphics, etc. smaller. Even a bit smaller than in the former 12.0 version. Good enough as a temporary bypass.

I understand that under Windows fonts now look larger. What I don't understand is why some fonts look smaller. In particular I am talking about the suggestions when typing a command and the command templates as shown below. These are now tiny regardless of the magnification setting:

This problem goes away if I change the MS Windows 10 magnification from 125% to 100%.

You are right. There is no difference in Option Inspector.Formatting Options.Font Options.

But nevertheless, the appearance is totally different. The following picture shows a notebook Text-cell and an Input-Cell. Once opened with the new 12.1 desktop (Wolfram|One). Once with an elder 12.0 desktop (Programming Lab).

The 12.0 version in the foreground is what I expect. The 12.1 version in the background has far too large fonts. Despite the fact that font sizes are 15pt (Text) and 13pt (Input) in both cases.

This happens on a Windows 10 laptop with a 1920 x 1080 pixel display.