I am using i3wm.
Running the following script in bash
if [ "$(pidof picom)" ];
then
pkill picom
fi
X=$(printf "0x%x\n" $(xdotool getactivewindow))
picom --color-invert-include "id=$X" &
results in nothing. I know how to color-invert a class of windows, say, how to color-invert all google-chrome instances. It is more convenient if I can decide whether I want to color-invert each instance.
QUESTION Given the background information as above, how can I color-invert a single window?