Android: buildozer specify styles.xml

[alexg93333]

I want to add my own style, for this I added the dependency in buildozer.spec:

android.gradle_dependencies = androidx.appcompat:appcompat:1.6.1

added:

android.apptheme = @style/SplashScreenTheme

but how to tell buildozer to use my styles.xml file where I specified the "SplashScreenTheme" ?
Where can I specify the path to my own styles.xml? Or how else can I do it? I tried to alter styles.xml inside the .buildozer folder but keep getting:

error: resource style/SplashScreenTheme (ak com.test.test:style/SplashScreenTheme) not found.