A zenity script to provide a simple dialog to choose wallpapers in conjunction with stitchWPmod.sh script

stitchWPmod-zenity.sh

#!/bin/bash

wpFiles=()
XOUT=$(xrandr | grep -oP '.*(?=\sconnected)')
for LINE in $XOUT; do
	FILE=`zenity --file-selection --file-filter=""*.bmp" "*.gif" "*.jpg" "*.jpeg" "*.png" "*.webp"" --title="Select an image for display $LINE"`
	case $? in
		0)
			wpFile="${FILE}"
			wpFiles+=("$wpFile");;
		1)
			echo "No file selected."
			exit;;
		-1)
			echo "An unexpected error has occurred."
			exit;;
	esac
done

./stitchWPmod.sh "${wpFiles[@]}"