Since I´ve installed DataGrip 2020.1 the font has changed to the new JetBrains Mono and it looks weird to me.
Which was the old font used by Jetbrains products?
It was:
Menlo
or Monospaced
on macOS. Courier
or Consolas
on Windows. DeJavu
on Linux.Try them if you don't like JetBrains Mono
.