Update background and add new multimedia keys

i3/.config/i3/config

@@ -222,6 +222,8 @@ set $volumestep 10
 # Using pulseaudio-utils (append "-s $sinkname" without quotes to override default sink)
 bindsym XF86AudioRaiseVolume exec $volumepath/volume -np -i $volumestep -t $statuscmd -u $statussig
 bindsym XF86AudioLowerVolume exec $volumepath/volume -np -d $volumestep -t $statuscmd -u $statussig
+bindsym $mod+p exec $volumepath/volume -np -i $volumestep -t $statuscmd -u $statussig
+bindsym $mod+o exec $volumepath/volume -np -d $volumestep -t $statuscmd -u $statussig
 bindsym XF86AudioMute        exec $volumepath/volume -mn -t $statuscmd -u $statussig
 
 # Sreen brightness controls