- \draw [<->] (Tn) -- node [midway,above,fill=white] {\small\texttt{liftmTask}} (D2T1);
- \draw [<->] (Sn) -- node [midway,above,fill=white] {\small\texttt{lowersds}} (D2S1);
+ \draw [<->] (Tn) -- node [midway,above,fill=white] {\texttt{liftmTask}} (D2T1);
+ \draw [<->] (Sn) -- node [midway,above,fill=white] {\texttt{lowerSds}} (D2S1);