swaynag: implement config file support

swaynag/swaynag.5.scd

@@ -0,0 +1,57 @@
+swaynag(5)
+
+# NAME
+
+swaynag - swaynag configuration file
+
+# SYNOPSIS
+
+$HOME/.swaynag/config, $XDG\_CONFIG\_HOME/swaynag/config,
+SYSCONFDIR/swaynag/config
+
+# CONFIG FILE
+At the top of the config file, _swaynag_ options can be set using the format
+_long-option=value_. These will be used as default values if _swaynag_ is not
+given the option. This can be useful for setting a preferred font, output, and
+edge.
+
+Below the options, custom types may be defined. To define a type, use the
+following format:
+
+```
+[name-of-type]
+color=RRGGBB[AA]
+```
+
+All colors may be given in the form _RRGGBB_ or _RRGGBBAA_. The following
+colors can be set:
+
+*background*
+	The background color for _swaynag_.
+
+*border*
+	The color to use for borders of buttons.
+
+*border-bottom*
+	The color of the border line at the bottom of _swaynag_.
+
+*button-background*
+	The background color for the buttons.
+
+*text*
+	The color of the text.
+
+# EXAMPLE
+```
+font=Monospace 12
+
+[green]
+background=00AA00
+border=006600
+border-bottom=004400
+text=FFFFFF
+button-background=00CC00
+```
+
+# SEE
+swaynag(1)