Alacritty new terminal emu, ranger devicons, background rotator, 1440p preparedNeed solution for multiple screen resolutions, install.sh selection?

.i3/scripts/rotate_background.sh

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+#! /bin/bash
+WALLPAPERS="/home/tristan/Pictures/bg_1440p"
+ALIST=( `ls -w1 $WALLPAPERS` )
+RANGE=${#ALIST[@]}
+let "number = $RANDOM"
+let LASTNUM="`cat $WALLPAPERS/.last` + $number"
+let "number = $LASTNUM % $RANGE"
+echo $number > $WALLPAPERS/.last
+nitrogen --set-scaled --save $WALLPAPERS/${ALIST[$number]}