+@item wl-summary-subject-length-limit
+@vindex wl-summary-subject-length-limit
+\e$B=i4|@_Dj$O\e(B @code{nil}\e$B!#%5%^%j$N\e(B Subject \e$BItJ,$NI=<(I}$N>e8B$G$9!#\e(B
+@code{nil} \e$B$N>l9g!"\e(BSubject \e$BItJ,$ND9$5$N@)8B$r$7$^$;$s!#\e(B
+
+@item wl-summary-indent-length-limit
+@vindex wl-summary-indent-length-limit
+\e$B=i4|@_Dj$O\e(B 46\e$B!#@_Dj$5$l$?CM0J>e%5%^%j$r%$%s%G%s%H$7$^$;$s!#\e(B@code{nil} \e$B$J\e(B
+\e$B$i%5%^%j$N%$%s%G%s%H$rL5@)8B$K$7$^$9!#\e(B
+\e$BCM$r\e(B @code{nil} \e$B$K$9$k$H$-$O!"\e(B@code{wl-summary-width} \e$B$b\e(B @code{nil} \e$B$K@_Dj\e(B
+\e$B$9$k$H$h$$$G$7$g$&!#\e(B
+
+@item wl-summary-recenter
+@vindex wl-summary-recenter
+\e$B=i4|@_Dj$O\e(B @code{t}\e$B!#\e(BNon-nil \e$B$J$i$PI=<($7$?$H$-$KI=<(Cf$N%a%C%;!<%8$N%5\e(B
+\e$B%^%j9T$r%&%#%s%I%&$NCf1{IU6a$K0\F0$5$;$^$9!#\e(B
+