Poor man's flashfocus

[drybalka]

First of all, flashfocus is a great idea! I just wanted to say, that most of the functionality of flashfocus for sway can be implemented using a small bash script:

#!/bin/bash

for OP in 0.905 0.82 0.745 0.68 0.625 0.58 0.545 0.52 0.505 0.5 0.505 0.52 0.545 0.58 0.625 0.68 0.745 0.82 0.905 1
do
        swaymsg opacity $OP
        sleep .005
done

and modifying the action on focus switch in the config:

bindsym $mod+$left exec swaymsg focus left && path-to-script

I suspect the same can be done for i3 and others quite similarly. Maybe you'd want to include this information in wiki or just simply leave it here.

P.S. This solution is inspired by a post here.