From b14d8b8980a86b1d2a161fb2f59673b421680812 Mon Sep 17 00:00:00 2001
From: Vladimir Mandic <mandic00@live.com>
Date: Fri, 12 Apr 2024 07:28:42 -0400
Subject: [PATCH] theme fallback

---
 CHANGELOG.md     | 2 +-
 modules/theme.py | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ae403696f..240a022fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 
 - PixArt-Σ requires `diffusers-0.28.0.dev0`
 
-## Update for 2024-04-11
+## Update for 2024-04-12
 
 - **Features**:
   - **Gallery**: list, preview, search through all your images and videos!  
diff --git a/modules/theme.py b/modules/theme.py
index 5921ce957..c840457aa 100644
--- a/modules/theme.py
+++ b/modules/theme.py
@@ -61,6 +61,12 @@ def list_themes():
         modules.shared.log.debug(f'UI themes available: type={modules.shared.opts.theme_type} themes={len(builtin)}')
     elif modules.shared.opts.theme_type == 'Modern':
         ext = next((e for e in modules.extensions.extensions if e.name == 'sdnext-ui-ux'), None)
+        if ext is None:
+            modules.shared.log.error('UI themes: ModernUI not found')
+            builtin = list_builtin_themes()
+            themes = sorted(builtin)
+            modules.shared.opts.theme_type = 'Standard'
+            return themes
         folder = os.path.join(ext.path, 'themes')
         themes = []
         if os.path.exists(folder):