Don't set font globally.

xlap/analyse/latency.py

@@ -165,7 +165,6 @@ def _plot_critical_regions(hdb):
     """
     plot regions, sorted by latency criticality
     """
-    plt.rcParams["font.family"] = "serif"
     relevant = sorted([x for x in hdb if x['Correlation'] > 0], key=lambda x: -x['Correlation'], reverse=True)
     x = np.arange(len(relevant))