[Substance] Font rendering on Catalina

[kirill-grouchnikov]

There's a bit of information about this at https://bugs.chromium.org/p/chromium/issues/detail?id=1005969#c37

Long story short, using the default UI font in Catalina (with .AppleSystemUIFont as the font family) results in pretty bad kerning across all text rendering. Jetbrains devs analyzed the issue and made fixes in https://github.com/JetBrains/intellij-community/search?q=Catalina&type=Commits and https://github.com/JetBrains/JetBrainsRuntime/search?q=Catalina&type=Commits

Unfortunately, in addition to setting the kerning hint on in the look-and-feel, it also requires fixes in the JRE. These are going to be sent for inclusion in OpenJDK, but the timeline for that is not yet clear.

For now the only workaround I can do in Substance is to use a different font on Catalina - Helvetica Neue is the current candidate.

[kirill-grouchnikov]

Latest update - there are additional fixes that are required in OpenJDK. It's too late to have them in Java 14.

Because of this, Substance will use Helvetica Neue on Catalina in the upcoming version 3.0