add option to overwrite color with env param

server/Server.py

@@ -75,6 +75,9 @@ class Server:
   # TIP: If you open your Battlesnake URL in a browser you should see this data
   def _info(self) -> dict:
     snake_config = self._read_json_config_or_create()
+    if os.environ.get("COLOR", None):
+      snake_config["color"] = os.environ.get("COLOR")
+
     print("INFO Snake:", snake_config)
     return snake_config