Add ExitItem and ExitTitle exit rows. This implements "exit" with

regular rows.  This allows us to move away from the tweaky, special
exit row.

stepmania/Themes/default/metrics.ini

@@ -2536,6 +2536,9 @@ ColorDisabled=0.1,0.1,0.1,1
 CapitalizeAllOptionNames=0
 TweenSeconds=0.3
 
+LineExitItem=list,ExitItem
+LineExitTitle=list,ExitTitle
+
 [ScreenMapControllers]
 Class=ScreenMapControllers
 Fallback=ScreenOptionsServiceChild
@@ -3907,10 +3910,27 @@ DancePadAngle=36
 HelperX=SCREEN_CENTER_X+0
 HelperY=SCREEN_CENTER_Y+80
 
+[OptionTitles]
+ExitItem=
+ExitTitle=@ScreenString("Exit")
+
+[OptionNames]
+ExitItem=@ScreenString("Exit")
+ExitTitle=
+
 [ScreenOptionsMaster]
 Fallback=ScreenOptions
 Class=ScreenOptionsMaster
 
+# ExitItem is an exit row with the "Exit" text as a menu item; ExitTitle
+# uses the menu title.
+ExitItem=1;together;SelectNone;showoneinrow
+ExitItemDefault=
+ExitItem,1=@'screen,' .. ScreenMetric("NextScreen") .. ';name,ExitItem'
+ExitTitle=1;together;SelectNone;showoneinrow
+ExitTitleDefault=
+ExitTitle,1=@'screen,' .. ScreenMetric("NextScreen") .. ';name,ExitTitle'
+
 # Player options
 Speed=12
 SpeedDefault=mod,1x,no randomspeed