Update app.py

app.py

@@ -285,7 +285,7 @@ If you don't want to apply any pre-defined format, unselect "Enable TIPO" and "E
                     label="Tread Gamma 2",
                     minimum=0.0,
                     maximum=1.0,
-                    value=0.25,
+                    value=0.0,
                     step=0.05,
                     interactive=True,
                 )