I have a folium map with three different colored markers which are based on cluster_labels from three bins:
df['cluster_label'] = pd.cut(df['column1'], 3, retbins=True, labels=[0,1,2])[0]
colors = ['lightgray', 'orange', 'red']
How do I create a simple folium map legend based on the marker colors and values like shown in the example image below?