Update app.py

app.py

@@ -99,7 +99,7 @@ def server(input, output, session):
                         gridsize=(40,25), 
                         cmap=cmap_sum,
                         vmin=0.0,
-                        vmax=2.0,)
+                        vmax=4.0,)
             bounds=[0.0,0.5,1,1.5,2,2.5,3,3.5,4]
             fig.colorbar(h, ax=ax, label='xSLG',format=tkr.FormatStrFormatter('%.3f'),shrink=0.5,
                         ticks=bounds)