diff --git a/etc/profile.d/99-wayland.sh b/etc/profile.d/99-wayland.sh
index f7604889..24363576 100644
--- a/etc/profile.d/99-wayland.sh
+++ b/etc/profile.d/99-wayland.sh
@@ -1,3 +1,4 @@
+export QT_STYLE_OVERRIDE=kvantum
 export QT_QPA_PLATFORMTHEME="kde"
 export GDK_BACKEND=wayland
 export QT_QPA_PLATFORM=wayland
diff --git a/local/share/dark-mode.d/00-do-not-repeat-yourself.sh b/local/share/dark-mode.d/00-do-not-repeat-yourself.sh
index 64aa7e10..3e9302be 100644
--- a/local/share/dark-mode.d/00-do-not-repeat-yourself.sh
+++ b/local/share/dark-mode.d/00-do-not-repeat-yourself.sh
@@ -1,7 +1,14 @@
 if ! hash lsb_release 2> /dev/null; then
 	ERRORMESSAGE="lsb_release was not found, the wallpaper scripts cannot figure out the distribution"
 	echo $ERRORMESSAGE
-	#notify-send $ERRORMESSAGE
+	notify-send --app-name=darkman --icon=error $ERRORMESSAGE
+	exit 0
+fi
+
+if ! hash kvantummanager 2> /dev/null; then
+	ERRORMESSAGE="kvantummanager wasn't found, Qt theme switching won't work!"
+	echo $ERRORMESSAGE
+	notify-send --app-name="darkman" --icon=error $ERRORMESSAGE
 	exit 0
 fi
 
@@ -17,5 +24,14 @@ if [[ "$DARKMANGET" == "dark" ]]; then
 elif [[ "$DARKMANGET" == "light" ]]; then
 	(notify-send --app-name="darkman" --urgency=low --icon=weather-clear "Teema: $DARKMANGET" &)
 else
-	echo "darkman: Something went wrong?"
+	ERRORMESSAGE="Something went wrong?"
+	echo $ERRORMESSAGE
+	notify-send --app-name="darkman" --icon=error $ERRORMESSAGE
+fi
+
+if [[ "$QT_STYLE_OVERRIDE" != "kvantum" ]]; then
+	ERRORMESSAGE="\$QT_STYLE_OVERRIDE is not 'kvantum', Qt theme switching has no effect!"
+	echo $ERRORMESSAGE
+	notify-send --app-name="darkman" --icon=error $ERRORMESSAGE
+	exit 0
 fi
diff --git a/local/share/dark-mode.d/10-adwaita-breeze-dark.bash b/local/share/dark-mode.d/10-adwaita-breeze-dark.bash
index 4ad80a19..6c17d173 100755
--- a/local/share/dark-mode.d/10-adwaita-breeze-dark.bash
+++ b/local/share/dark-mode.d/10-adwaita-breeze-dark.bash
@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 
+. ~/.local/share/dark-mode.d/00-do-not-repeat-yourself.sh
+
 # This is all adapted from /usr/share/doc/darkman/examples/dark-mode.d/
 
 # GTK Theme
@@ -12,3 +14,6 @@
 
 # Plasma
 (lookandfeeltool --apply "org.kde.breezedark.desktop" &)
+
+# Kvantum Qt
+(kvantummanager --set KvGnomeDark &)
diff --git a/local/share/light-mode.d/10-breeze.bash b/local/share/light-mode.d/10-breeze.bash
index 1724be0c..677b706c 100755
--- a/local/share/light-mode.d/10-breeze.bash
+++ b/local/share/light-mode.d/10-breeze.bash
@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 
+. ~/.local/share/dark-mode.d/00-do-not-repeat-yourself.sh
+
 # This is all adapted from /usr/share/doc/darkman/examples/light-mode.d/
 
 # GTK Theme
@@ -12,3 +14,6 @@
 
 # Plasma
 (lookandfeeltool --apply "org.kde.breeze.desktop" &)
+
+# Kvantum Qt
+(kvantummanager --set KvGnome &)