From 006f712eeb636d9d9f2e47f57cfccd5f8e63267d Mon Sep 17 00:00:00 2001
From: Struan Donald <struan@exo.org.uk>
Date: Wed, 21 Feb 2024 15:49:06 +0000
Subject: [PATCH] don't try to use max/min on non numeric shaders

---
 hub/models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hub/models.py b/hub/models.py
index a2b218909..2252795e3 100644
--- a/hub/models.py
+++ b/hub/models.py
@@ -190,7 +190,7 @@ def colours_for_areas(self, areas):
                             "label": self.label,
                         }
 
-            if colours.get(value.gss, None) is None:
+            if self.is_number and colours.get(value.gss, None) is None:
                 shade = self.shade(data, mininimum, maximum)
                 if shade is not None:
                     colours[value.gss] = {