ThemeManager::EvaluateString was called here for three things:

- RunAtExpressionS.  Using @ to generate command lists is no longer allowed; it's
   too expensive and clumsy, and is no longer needed.
 - "::" for newlines.  This isn't needed, since the string is a Lua expression;
   use "\n".
 - FontCharAliases::ReplaceMarkers.  This only makes sense for settext calls.
(The latter two will still be supported by settext directly.)

stepmania/src/ThemeManager.cpp

@@ -721,7 +721,7 @@ Commands ThemeManager::GetMetricM( const CString &sClassName, const CString &sVa
 
 apActorCommands ThemeManager::GetMetricA( const CString &sClassName, const CString &sValueName )
 {
-	CString sValue = GetMetric( sClassName, sValueName );	// Use non-raw so that Lua expressions are allowed
+	CString sValue = GetMetricRaw( sClassName, sValueName );
 	return apActorCommands( new ActorCommands( sValue ) );
 }