Hello Frank,
with Android 11 being in beta, it's time as good as ever to ask this question. How, if in any way, will the upcoming Scoped Storage/Storage Access Framework affect Kustom apps, as well as Kustom creators? Will it still be possible for users to import presets from KLWP/KWGT packs downloaded from Play Store?
Here are two links for more context.
https://www.xda-developers.com/google-file-manager-devs-submit-form-broad-file-storage-access-android-11/
https://developer.android.com/preview/privacy/storage