<b>IMPORTANT:</b> You need the Substratum theming platform working on your device! Read the inbuilt information before reporting any issues! Theme for Substratum, originally based on the default AOSP dark material colors; then extended to provide more variants to allow configuration according to the user's taste. This is the successor theme of https://f-droid.org/packages/de.spiritcroc.defaultdarktheme_oms series for newer Android versions, starting with Android 9.