/usr/share/lipstick-jolla-home-qt/compositor/ApplicationWallpaper.qml; previous mod shown in screenshot, from this thread - https://together.jolla.com/question/...odding-system/ I think I remember ApplicationWindow qml is in /usr/lib/qt5/qml/Sailfish/Silica/private
import QtQuick 2.2 import Sailfish.Silica 1.0 import org.nemomobile.lipstick 0.1 Wallpaper { id: wallpaper // All properties are applied to the rasterized texture. Changing it // means updating the texture and is thus very expensive. So don't go // animating them. textureSize: Qt.size(isLegacyWallpaper ? Screen.width : Screen.height, Screen.height) // effect: "glass" overlayColor: Theme.colorScheme === Theme.DarkOnLight ? Qt.rgba(1.0, 1.0, 1.0, 0.35) // : Qt.rgba(0.0, 0.0, 0.0, 0.6) : Qt.rgba(0.18, 0.21, 0.24, 1.0) source: Theme.backgroundImage }