In config.xml I've set:
This has no effect on the Android platform. Splash screen autohides after 3 seconds (the default SplashScreenDelay).
Tested on Android 5.0.1.
If I look at the code here https://github.com/apache/cordova-plugin-splashscreen/blob/master/src/android/SplashScreen.java I'd expect to see something like this somewhere:
Maybe this has something to do with it?
If you need any more info, please let me know.