Delay in the theme refresh

[Sottti]

Looking at the theme switchiing looks like there's a delay. Looking at the code looks like the refresh rate is 3 seconds.

Looks like other apps are doing it instantly (this is the difference) and it looks kind of laggy. Is there any way we could have it switching as quickly as other apps or is it nor possible?

Thanks!

[gilday]

Good observation. Apps which change instantly are almost always native applications developed using Apple's AppKit framework. The AppKit frameworks exposes callbacks for the OS to trigger theme changes.

On the other hand, IDEA is a Java application not developed with AppKit. As you've discovered, this plugin uses the polling mechanism as a workaround to detect when the theme has changed. I'm sure there is a better solution which involves a complex bridge between Java and macOS native AppKit code; however, such a solution is a bit over my head, so I've labeled this issue with "help wanted".