I noticed that OpenJDK added a fix for switching to dark mode with GTK in JDK 27 early-access builds. Does Swing already detect and follow the system theme on other platforms, or is platform-specific configuration or a third-party look-and-feel still needed?
3 Answers
FlatLaf is probably the easiest way to get a polished light/dark experience in Swing. It supports dark mode and usually handles the visual issues that the default look and feel leaves behind.
If you want reliable dark-mode switching across operating systems, use an explicit theme or a library such as FlatLaf instead of relying entirely on the platform look and feel. Native support is improving, but the appearance and switching behavior can vary by platform.
With the system look and feel enabled, Swing can generally resemble a native GTK application, but the result may still feel inconsistent or dated, and automatic theme switching depends on the platform and JDK support. The GTK fix improves that integration rather than making every Swing application universally theme-aware.
Related Questions
How To: Running Codex CLI on Windows with Azure OpenAI
Set Wordpress Featured Image Using Javascript
How To Fix PHP Random Being The Same
Why no WebP Support with Wordpress
Replace Wordpress Cron With Linux Cron
Customize Yoast Canonical URL Programmatically