Has anyone come across this issue with DBSchema (connected to a Derby database) where Integer (and BIGINT) fields are displayed with a comma separator in them. You can see the effect in the bottom row of the attached image.
Any ideas how to turn this off? I have gone through all the settings and can't find anything related. The reason it is annoying is that it the fields are unix time fields and having commas as magnitude separators is a very distracting.

The reason commas are being used as the thousands-separator is probably the Locale set in the JVM that's running DbSchema.
You can change it by adding these two lines to the DbSchema.vmoptions file located in the installation directory
Here is a mapping of Locales to Decimal and Thousands separators https://docs.oracle.com/cd/E19455-01/806-0169/overview-9/index.html
For more details about Locale read https://www.oracle.com/technical-resources/articles/javase/locale.html