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.TH "wlsunset" "1" "2024-04-21"
.PP
.SH NAME
.PP
wlsunset - day/night gamma adjustments for Wayland compositors supporting
wlr-gamma-control-unstable-v1
.PP
.SH SYNOPSIS
.PP
\fBwlsunset\fR [options.\&.\&.\&]
.PP
.SH OPTIONS
.PP
\fB-h\fR
.RS 4
Show this help message.\&
.PP
.RE
\fB-T\fR <temp>
.RS 4
Set high temperature (default: 6500).\&
.PP
.RE
\fB-t\fR <temp>
.RS 4
Set low temperature (default: 4000).\&
.PP
.RE
\fB-l\fR <lat>
.RS 4
Set latitude (e.\&g.\& 39.\&9).\&
.PP
.RE
\fB-L\fR <long>
.RS 4
Set longitude (e.\&g.\& 116.\&3).\&
.PP
.RE
\fB-S\fR <sunrise>
.RS 4
Manual time for sunrise as HH:MM (e.\&g.\& 06:30).\&
.PP
.RE
\fB-s\fR <sunset>
.RS 4
Manual time for sunset as HH:MM (e.\&g.\& 18:30).\&
.PP
.RE
\fB-d\fR <duration>
.RS 4
Manual animation time in seconds (e.\&g.\& 1800).\&
.PP
Only applicable when using manual sunset/sunrise times.\&
.PP
.RE
\fB-g\fR <gamma>
.RS 4
Set gamma (default: 1.\&0).\&
.PP
.RE
.SH RUNTIME CONTROL
.PP
Sending SIGUSR1 to wlsunset causes it to cycle through the following modes:
.PP
1.\& Forced use of the high temperature.\&
.PP
2.\& Forced use of the low temperature.\&
.PP
3.\& Automatic temperature calculation, the default behavior.\&
.PP
.SH EXAMPLE
.PP
.nf
.RS 4
# Beijing lat/long\&.
wlsunset -l 39\&.9 -L 116\&.3
.fi
.RE
.PP
Greater precision than one decimal place serves no purpose
(https://xkcd.\&com/2170/) other than padding the command-line.\&
.PP
.SH AUTHORS
.PP
Maintained by Kenny Levinsen <contact@kl.\&wtf>.\& For more information about
wlsunset development, see https://sr.\&ht/~kennylevinsen/wlsunset.\&