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-rw-r--r--man/xbiff.man8
1 files changed, 7 insertions, 1 deletions
diff --git a/man/xbiff.man b/man/xbiff.man
index 446a47f..739b362 100644
--- a/man/xbiff.man
+++ b/man/xbiff.man
@@ -68,7 +68,11 @@ is your login name). If the MAIL environment variable is set,
the file specified by it will be monitored.
.TP 8
.B \-volume \fIpercentage\fP
-This option specifies how loud the bell should be rung when new mail comes in.
+This option specifies how loud the bell should be rung when new mail
+comes in. The percentage is relative to the current volume in \fIxset\fP.
+So 0 is normal volume, negative percentages are towards minimum (-100
+is silent), and positive percentages are towards maximum volume (100
+is loudest).
.TP 8
.B \-shape
This option indicates that the mailbox window should be shaped if masks for
@@ -145,6 +149,8 @@ The default is 30.
.TP 8
.B volume (\fPclass\fB Volume)
Specifies how loud the bell should be rung. The default is 33 percent.
+Note that this is a percentage of the current \fIxset\fP volume.
+To reduce the volume, specify a negative percentage.
.TP 8
.B foreground (\fPclass\fB Foreground)
Specifies the color for the foreground.