handle fallback theme

CHANGELOG.md

@@ -1,17 +1,26 @@
 # Change Log for SD.Next
 
+## Pending
+
+- Diffusers==0.30.0
+- https://github.com/huggingface/diffusers/issues/8579
+- https://github.com/huggingface/diffusers/issues/8546
+- https://github.com/huggingface/diffusers/pull/8566
+- https://github.com/huggingface/diffusers/pull/8506
+
 ## Update for 2024-06-15
 
-- sd3 enable taesd preview and non-full quality mode
-- sd3 simplified loading of model in single-file safetensors format
-- css tweaks for standardui
-- force apply vae config on model load  
-  fix unsaturated outputs  
-- restructure api examples: `cli/api-*`
+- support for `torch-directml` **0.2.2**, thanks @lshqqytiger!
+- **sd3** enable taesd preview and non-full quality mode
+- **sd3** simplified loading of model in single-file safetensors format
+- fix unsaturated outputs, force apply vae config on model load  
 - fix control second pass resize
 - fix api face-hires
-- fix hunyuandit set attention processor
+- fix **hunyuandit** set attention processor
 - fix civitai download without name
+- css tweaks for standardui
+- restructure api examples: `cli/api-*`
+- handle theme fallback when invalid theme is specified
 
 ## Update for 2024-06-13
 

modules/shared.py

@@ -330,8 +330,9 @@ def temp_disable_extensions():
         modules.shared.opts.data['theme_type'] = 'None'
         modules.shared.opts.data['gradio_theme'] = theme_name
     else:
-        modules.shared.opts.data['theme_type'] = 'None'
-        modules.shared.opts.data['gradio_theme'] = theme_name
+        modules.shared.log.error(f'UI theme invalid: theme="{theme_name}" available={["standard/*", "modern/*", "none/*"]} fallback="standard/black-teal"')
+        modules.shared.opts.data['theme_type'] = 'Standard'
+        modules.shared.opts.data['gradio_theme'] = 'black-teal'
 
     for ext in disable_themes:
         if ext.lower() not in opts.disabled_extensions:

modules/theme.py

@@ -91,7 +91,6 @@ def reload_gradio_theme():
         'font_mono':['IBM Plex Mono', 'ui-monospace', 'Consolas', 'monospace']
     }
     gradio_theme = gr.themes.Base(**default_font_params)
-
     available_themes = list_themes()
     if theme_name not in available_themes:
         modules.shared.log.error(f'UI theme invalid: type={modules.shared.opts.theme_type} theme="{theme_name}" available={available_themes}')
@@ -99,6 +98,9 @@ def reload_gradio_theme():
             theme_name = 'black-teal'
         elif modules.shared.opts.theme_type == 'Modern':
             theme_name = 'Default'
+        else:
+            modules.shared.opts.theme_type = 'Standard'
+            theme_name = 'black-teal'
 
     modules.shared.opts.data['gradio_theme'] = theme_name