-\babelfont{rm}[Path = otf/,
-ItalicFont={OldStandard-Italic.otf},
-BoldFont={OldStandard-Bold.otf},
-BoldItalicFont={OldStandard-BoldItalic.otf}]{OldStandard-Regular.otf}
-
-\babelfont[greek]{rm}[Path = otf/,
-RawFeature={+ss05;+ss06},
-ItalicFont={OldStandard-Italic.otf},
-BoldFont={OldStandard-Bold.otf},
-BoldItalicFont={OldStandard-BoldItalic.otf}]{OldStandard-Regular.otf}
-
-\babelfont{tt}{CMU Typewriter Text}
+\babelfont{rm}{Old Standard}
+\babelfont[greek]{rm}[RawFeature={+ss05;+ss06}]{Old Standard}
+\babelfont{tt}{UMTypewriter}