#!/bin/bash IMAGE=$(cat "$HOME"/.cache/current.bg) MAGMEAN=$(magick identify -format %[mean] "$IMAGE") MAXMEAN=30000 if [ "${MAGMEAN%.*}" -eq ${MAXMEAN%.*} ] && [ "${MAGMEAN#*.}" \> ${MAXMEAN#*.} ] || [ "${MAGMEAN%.*}" -gt ${MAXMEAN%.*} ]; then printf "light\n" exit 0 else printf "dark\n" exit 0 fi