support for the interior tileSet. trees don't work. mounted all 3 of the tileSet mixen; this means there are name-clashes in some cases.

SequenceEditor/Program.cs

@@ -76,8 +76,6 @@ namespace SequenceEditor
 			}
 			catch( FileNotFoundException ){}
 
-			FileSystem.MountTemporary(new Package("temperat.mix"));
-
 			XmlFilename = args.FirstOrDefault( x => x.EndsWith(".xml") ) ?? "sequences.xml";
 			Doc = new XmlDocument(); 
 			Doc.Load(XmlFilename);