Update app.py

app.py

@@ -31,7 +31,16 @@ def plot_taraf_map(yaxis,min_year = 0, max_year = 400):
     temp[f'{yaxis}_CubeRoot'] = temp[yaxis].apply(np.cbrt)
     filtered = geopandas.GeoDataFrame(temp, geometry= 'Coordinates').reset_index()
     fig = px.scatter_mapbox(data_frame = filtered, lat = filtered.geometry.y, lon = filtered.geometry.x,size = f'{yaxis}_CubeRoot',color = yaxis, title = f'Map of {yaxis}', opacity = .5, zoom = 0, hover_data = 'City')
-    fig.update_layout(title_font_color = 'red', title_x = .5, mapbox_style="stamen-terrain")
+    fig.update_layout(title_font_color = 'red', title_x = .5, mapbox_style="white-bg",
+    mapbox_layers=[
+        {
+            "below": 'traces',
+            "sourcetype": "raster",
+            "sourceattribution": "United States Geological Survey",
+            "source": [
+                "https://basemap.nationalmap.gov/arcgis/rest/services/USGSImageryOnly/MapServer/tile/{z}/{y}/{x}"
+            ]
+        })
     fig.update_layout(
     margin=dict(l=0,b=0),
     )