Update app.py

app.py

@@ -30,7 +30,7 @@ p = figure(title="Scatter Plot with Image Hover", tools="pan,box_zoom,wheel_zoom
         <div><img src="@image" ></div>
     </div>
 """)
-p.circle('x', 'y', size=7, source=source, color=color_mapper)  # Apply the color mapper
+p.circle('x', 'y', size=9, source=source, color=color_mapper)  # Apply the color mapper
 
 # Add color bar
 color_bar = ColorBar(color_mapper=color_mapper['transform'], width=8, location=(0, 0),