diff --git a/docker-mods/duplicati/Dockerfile b/docker-mods/duplicati/Dockerfile
new file mode 100644
index 00000000..5d11a1f6
--- /dev/null
+++ b/docker-mods/duplicati/Dockerfile
@@ -0,0 +1,7 @@
+FROM scratch
+
+
+LABEL maintainer="GilbN"
+LABEL app="Duplicati"
+#copy local files. 
+COPY root/ /
\ No newline at end of file
diff --git a/docker-mods/duplicati/root/etc/cont-init.d/98-themepark b/docker-mods/duplicati/root/etc/cont-init.d/98-themepark
new file mode 100644
index 00000000..293b111b
--- /dev/null
+++ b/docker-mods/duplicati/root/etc/cont-init.d/98-themepark
@@ -0,0 +1,49 @@
+#!/usr/bin/with-contenv bash
+
+echo '----------------------------'
+echo '| Duplicati theme.park Mod |' 
+echo '----------------------------'
+
+APP_FILEPATH='/app/duplicati/webroot'
+
+# Display variables for troubleshooting 
+echo -e "Variables set:\\n\
+'APP_FILEPATH'=${APP_FILEPATH}\\n\
+'TP_DOMAIN'=${TP_DOMAIN}\\n\
+'TP_THEME'=${TP_THEME}\\n"
+
+# Set default
+if [[ -z ${TP_DOMAIN} ]]; then
+    echo 'No domain set, defaulting to theme-park.dev'
+    TP_DOMAIN='theme-park.dev'
+fi
+
+case ${TP_DOMAIN} in
+  *"github.io"*)
+  echo "Switching to github.io URL style"
+    TP_DOMAIN="${TP_DOMAIN}\/theme.park"
+    ;;
+esac
+
+if [[ -z ${TP_THEME} ]]; then
+    echo 'No theme set, defaulting to organizr-dark'
+    TP_THEME='organizr-dark'
+fi
+
+sed_file(){
+	sed -i "s/<\/head>/<link rel='stylesheet' href='https:\/\/${TP_DOMAIN}\/CSS\/themes\/duplicati\/duplicati-base.css'><\/head> /g" $1
+    sed -i "s/<\/head>/<link rel='stylesheet' href='https:\/\/${TP_DOMAIN}\/CSS\/variables\/${TP_THEME}.css'><\/head> /g" $1
+	printf 'Stylesheet set to %s on %s\n\n' "${TP_THEME}" "$1"
+}
+
+# Adding stylesheets
+echo '---------------------------------------'
+echo '| Adding the stylesheet to html files |'
+echo '---------------------------------------'
+
+if ! grep -q "${TP_DOMAIN}" "${APP_FILEPATH}/index.html"; then
+    find ${APP_FILEPATH} -type f -iname *.html | while read fname
+	do
+		sed_file $fname
+	done
+fi