fix: add colors to streamlit example 🎨 (#187)

* 🎨 add colors to streamlit example

* 📝 review

---------

Co-authored-by: Jonas Van Der Donckt <[email protected]>

Author: jvdd

examples/other_apps/streamlit_app.py

@@ -9,10 +9,19 @@
 To run this example execute the following command:
 $ streamlit run streamlit_app.py
 
+Note: to have colored traces in the streamlit app, you should always include the
+following code: `import plotly.io as pio; pio.templates.default = "plotly"`
+
 """
 
 __author__ = "Jeroen Van Der Donckt"
 
+# Explicitely set pio.templates in order to have colored traces in the streamlit app!
+# -> https://discuss.streamlit.io/t/streamlit-overrides-colours-of-plotly-chart/34943/5
+import plotly.io as pio
+
+pio.templates.default = "plotly"
+
 # 0. Create a noisy sine wave
 import numpy as np
 import plotly.graph_objects as go