sway/.config/sway/available/output/random-bg.conf

# Sway Config: Random Background Configure
#
# Thurstylark

set $o-id "*"
set $o-bg-path $$(/usr/share/backgrounds/thurstylark/tl-wallpaper-shuf.bash)
set $o-bg-fill "#000000"

output $o-id bg $o-bg-path fill $o-bg-fill