openbsd mixerctl gui Files

Install the file volume-control to ~/bin.

Place the following in ~/.xinitrc:

~/bin/volume-control "low" "medium" "high" &

replacing the words low, medium, and high with
integers corresponding to the volume you want
the buttons preset to. For example if you normally
have your mixerctl outputs.master=150,150 then that
may be a good "high" value. Then adjust your low, and 
medium accordingly.

There are no plans to change this in anyway. I am
sharing it because others may find it useful. If it 
doesn't look right to you, fix it.