is assumed to be "percentage_avail" and low_threshold to be set to 0, which
implies no coloring at all.
+You can define a different format with the option "format_not_mounted"
+which is used if the path is not a mount point. So you can just empty
+the output for the given path with adding »format_not_mounted=""«
+to the config section.
+
*Example order*: +disk /mnt/usbstick+
*Example format*: +%free (%avail)/ %total+