Update app.py

app.py

@@ -78,7 +78,7 @@ def epi_sankey(sankey_data,disease_or_gard_id):
           thickness = 20,
           line = dict(color = "white", width = 0.5),
           label = ["PubMed IDs Gathered", "Irrelevant Abstracts","Relevant Abstracts Gathered","Epidemiologic Abstracts","Not Epidemiologic"],
-          color = "violet"
+          color = "purple"
         ),
         #label = ["A1", "A2", "B1", "B2", "C1", "C2"]
         link = dict(