Volumebar widget
Almost the same as volume widget, but more minimalistic:
Supports
- scroll up - increase volume,
- scroll down - decrease volume,
- left click - mute/unmute.
Installation
Clone repo, include widget and use it in rc.lua:
require("volumebar")
...
s.mytasklist, -- Middle widget
   { -- Right widgets
   	layout = wibox.layout.fixed.horizontal,
   	...
   	volumebar_widget,
   	...      
Troubleshooting
If the bar is not showing up, try to decrease top or bottom margin - widget uses hardcoded margins for vertical alignment, so if your wibox is too small then bar is simply hidden by the margins.
