+=== Volume
+
+Outputs the volume of the specified mixer on the specified device. Works only
+on Linux because it uses ALSA.
+
+*Example order*: +volume master+
+
+*Example format*: +♪: %volume+
+
+*Example configuration*:
+-------------------------------------------------------------
+volume master {
+ format = "♪: %volume"
+ device = "default"
+ mixer = "Master"
+ mixer_idx = 0
+}
+-------------------------------------------------------------
+