I just installed the Wolfram Desktop 12.1 clean install on windows by first completely uninstalling all previous versions so previous settings don't impact the new installation.
The new front end for version 12.1 is all over the place. Its font sizes are completely ridiculous. At first, I thought bigger fonts can be managed but they are impacting all around.
Suggestion and command templates have smaller font sizes than the rest of the system. Also I can't even see all the columns of the dataset by scrolling all the way to the right (probably because of the extra rounding box around the dataset and huge font sizes).
Another issue found, weird controller placement in Manipulate (By default the ControlPlacement is set to Automatic, so the font changes are probably causing the Automatic algorithm to choose Left as the appropriate default):
Another issue found, WordCloud again based on the Automatic algorithm is causing overlaps since it is not tuned to consider the font changes in 12.1. (By the way, I have SetOptions[$FrontEnd,Magnification->72/96])



CurrentValue[{"SystemFonts", "Menu"}]returns{FontFamily -> "DejaVu Sans", FontSize -> 9}. In Mma 12.0 the font size is 12, though. Is there are any trick to change/increase the size in 12.1? Stylesheets and similar methods do not seem to work for me. – vsht Mar 31 '20 at 12:05Datasetissue to support. – ihojnicki Apr 01 '20 at 16:36