diff --git a/programs/sway.nix b/programs/sway.nix
index a184dc5..12cc729 100644
--- a/programs/sway.nix
+++ b/programs/sway.nix
@@ -40,6 +40,8 @@ in {
     } // { # Function Media Keys
       XF86MonBrightnessUp = "exec bash ${changebrightness} 1";
       XF86MonBrightnessDown = "exec bash ${changebrightness} -1";
+      XF86AudioMute = "exec wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle";
+      "${mod}+XF86AudioMute" = "exec wpctl set-mute @DEFAULT_AUDIO_SOURCE@ toggle";
       XF86AudioRaiseVolume = "exec wpctl set-volume @DEFAULT_AUDIO_SINK@ 0.05+";
       XF86AudioLowerVolume = "exec wpctl set-volume @DEFAULT_AUDIO_SINK@ 0.05-";
       "${mod}+XF86AudioRaiseVolume" = "exec wpctl set-volume @DEFAULT_AUDIO_SOURCE@ 0.05+";
diff --git a/scripts/changebrightness.sh b/scripts/changebrightness.sh
index 3e747d5..631032b 100644
--- a/scripts/changebrightness.sh
+++ b/scripts/changebrightness.sh
@@ -1,16 +1,23 @@
+#!/bin/bash
 bright=`cat /sys/class/backlight/amdgpu_bl0/brightness`
 state=-1
-thresh=(1 2 3 4 5 6 8 10 13 16 21 27 34 44 57 73 94 120 155 199 255)
+thresh=(0 1 3 5 9 15 27 48 84 147 255)
 
 for i in ${!thresh[@]}; do
-    if [ $bright -ge ${thresh[$i]} ]
+    if [[ $bright -ge ${thresh[$i]} ]]
     then
         state=$i
     fi    
 done
 
 new=$(($1 + $state))
-if [ $new -ge 0 ] && [ $new -le 20 ]
+
+if [[ $new -ge 0 ]] && [[ $new -le 10 ]]
 then
     echo ${thresh[$new]} | tee /sys/class/backlight/amdgpu_bl0/brightness
+    if [[ $? -eq 0 ]] && [[ -f $(which dunstify) ]]
+    then
+        dunstify -a "changebrightness.sh" -u low -i weather-clear -h string:x-dunst-stack-tag:changebrightness "Brightness: $new"
+    fi
 fi
+
diff --git a/todo b/todo
index 4a6c591..66dd3a3 100644
--- a/todo
+++ b/todo
@@ -5,5 +5,5 @@ i3status bar
 bluetooth setup
 media player daemon
 dmenu files
-background (used feh on i3)
-
+notifications timeout and other assorted settings
+add pandoc support for markdown rendering