theme cleanup

stepmania/Themes/default/BGAnimations/_standard decoration required.lua

@@ -0,0 +1,15 @@
+local MetricsName, FileName = ...;
+local t = LoadActor( THEME:GetPathG(Var "LoadingScreen",FileName) );
+if type(t) == "table" then
+	t = t .. {
+		InitCommand=function(self)
+				local x1 = THEME:GetMetric(Var "LoadingScreen",MetricsName .. "X");
+				if x1 then self:x(x1); end
+				local y1 = THEME:GetMetric(Var "LoadingScreen",MetricsName .. "Y");
+				if y1 then self:y(y1); end
+			end;
+		OnCommand=THEME:GetMetric(Var "LoadingScreen",MetricsName .. "OnCommand");
+		OffCommand=THEME:GetMetric(Var "LoadingScreen",MetricsName .. "OffCommand");
+	};
+end
+return t;