Hm, I think this may be the "rtl" option under the "beta" tab in Super Text Mesh, rather than the "rtl" option in this script? Try unchecking (or checking?) it for a different result! It's been a while since I looked into it, but it changes how the text is interpreted, so hopefully the right configuration is there. Keep in mind, any changes made to this script won't change until Super Text Mesh rebuilds, so make sure to refresh some setting on Super Text Mesh to see the change.