set color for status incomplete

fet2020/finance/admin.py

@@ -173,10 +173,12 @@ class BillAdmin(admin.ModelAdmin):
     get_bankdata_bic.short_description = "BIC"
 
     def status_colored(self, obj):
+        # TODO: if there is a status without color, set nothing.
         colors = {
             "S": "red",
             "C": "darkorange",
             "F": "green",
+            "I": "blue",
         }
         return mark_safe(
             f'<b style="background:{colors[obj.status]};">{obj.get_status_display()}</b>'