#!/usr/bin/env bash

icon=$1
tmpbg="/tmp/lockscreen.png"
tmpic="/tmp/lockscreenicon.png"
#(( $# )) && { icon=$1; }

scrot --overwrite "$tmpbg"
convert "$icon" -scale 25% "$tmpic"
convert "$tmpbg" -scale 10% -scale 1000% "$tmpbg"
convert "$tmpbg" "$tmpic" -gravity center -composite -matte "$tmpbg"

i3lock -u -i "$tmpbg"