I flatlaf theme macOS dark in sh3d. I'm running sh3d on arch linux. How I did this was: download the latest flatlaf jar file from: https://repo1.maven.org/maven2/com/formdev/flatlaf/ for me it was flatlaf version 3.6.2, so I downloaded: flatlaf-3.6.2.jar, and put it to /opt/flatlaf I modified the sh3d launcher bash script at /usr/bin/sweethome3d. find the top level $APP_CLASSPATH and add to the end after a colon the full path of the flatlaf jar file. for me it was: /opt/flatlaf/flatlaf-3.6.2.jar...