Adding double borders to bspwm

This snippet adds double borders to bspwm’s windows

#!/bin/sh
#
#   double borders
#
#. "${HOME}/.cache/wal/colors.sh"
outer='0x201515'   # outer
inner1='0xFDB057'  # focused
inner2='0xBA430C'  # normal
 
targets() {
    case $1 in
        focused) bspc query -N -n .local.focused.\!fullscreen;;
        normal)  bspc query -N -n .local.\!focused.\!fullscreen;;
        active) bspc query -N -n .active.\!focused.\!fullscreen
    esac
}
 
draw() { chwb2 -I "$i" -O "$o" -i "2" -o "10" $@ 2> /dev/null; }
 
# initial draw, and then subscribe to events
{ echo; bspc subscribe node_geometry node_focus; } |
    while read -r _; do
        i=$inner1 o=$outer draw "$(targets focused)"
        i=$inner2 o=$outer draw "$(targets  normal)"
        i=$inner2 o=$outer draw "$(targets  active)"
    done

Just add this to a file borders and make it executable with $ chmod +x borders

Call it in bspwmrc with ./borders &