From 4b156e880c99505656d2f710fda33fea2c92a793 Mon Sep 17 00:00:00 2001
From: Sonny Box <imsonnybox@gmail.com>
Date: Sun, 26 Jul 2026 17:30:44 -0700
Subject: [PATCH] fix tk error on windows

---
 scheduling/sigmas_graph.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/scheduling/sigmas_graph.py b/scheduling/sigmas_graph.py
index fd326c0..9f35f93 100644
--- a/scheduling/sigmas_graph.py
+++ b/scheduling/sigmas_graph.py
@@ -3,6 +3,10 @@ import random
 
 from comfy_api.latest import io, ui
 import folder_paths
+
+import matplotlib
+matplotlib.use("Agg")
+
 import matplotlib.pyplot as plt
 import matplotlib.ticker as ticker
 import numpy as np
@@ -10,6 +14,7 @@ from PIL import Image
 import torch
 
 
+
 class SigmasGraph(io.ComfyNode):
     def __init__(self):
         # Based on PreviewImage logic here to save to the temp directory