Major Update: created v5 (switching from x11 to wayland). Changed polybar to waybar in this commit.

home/.config/waybar/microphone.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+mic=$(pactl get-source-mute @DEFAULT_SOURCE@ | awk '{print $2}')
+
+if [ "$1" == "toggle" ]; then
+    pactl set-source-mute @DEFAULT_SOURCE@ toggle
+fi
+
+mic=$(pactl get-source-mute @DEFAULT_SOURCE@ | awk '{print $2}')
+
+if [ "$mic" == "yes" ]; then
+    echo '{"text":"","class":"mic-muted"}'
+else
+    echo '{"text":"","class":"mic-unmuted"}'
+fi