split shared.py into multiple files; should resolve all circular reference import errors related to shared.py

modules/shared_gradio_themes.py

@@ -0,0 +1,66 @@
+import os
+
+import gradio as gr
+
+from modules import errors, shared
+from modules.paths_internal import script_path
+
+
+# https://huggingface.co/datasets/freddyaboulton/gradio-theme-subdomains/resolve/main/subdomains.json
+gradio_hf_hub_themes = [
+    "gradio/base",
+    "gradio/glass",
+    "gradio/monochrome",
+    "gradio/seafoam",
+    "gradio/soft",
+    "gradio/dracula_test",
+    "abidlabs/dracula_test",
+    "abidlabs/Lime",
+    "abidlabs/pakistan",
+    "Ama434/neutral-barlow",
+    "dawood/microsoft_windows",
+    "finlaymacklon/smooth_slate",
+    "Franklisi/darkmode",
+    "freddyaboulton/dracula_revamped",
+    "freddyaboulton/test-blue",
+    "gstaff/xkcd",
+    "Insuz/Mocha",
+    "Insuz/SimpleIndigo",
+    "JohnSmith9982/small_and_pretty",
+    "nota-ai/theme",
+    "nuttea/Softblue",
+    "ParityError/Anime",
+    "reilnuud/polite",
+    "remilia/Ghostly",
+    "rottenlittlecreature/Moon_Goblin",
+    "step-3-profit/Midnight-Deep",
+    "Taithrah/Minimal",
+    "ysharma/huggingface",
+    "ysharma/steampunk"
+]
+
+
+def reload_gradio_theme(theme_name=None):
+    if not theme_name:
+        theme_name = shared.opts.gradio_theme
+
+    default_theme_args = dict(
+        font=["Source Sans Pro", 'ui-sans-serif', 'system-ui', 'sans-serif'],
+        font_mono=['IBM Plex Mono', 'ui-monospace', 'Consolas', 'monospace'],
+    )
+
+    if theme_name == "Default":
+        shared.gradio_theme = gr.themes.Default(**default_theme_args)
+    else:
+        try:
+            theme_cache_dir = os.path.join(script_path, 'tmp', 'gradio_themes')
+            theme_cache_path = os.path.join(theme_cache_dir, f'{theme_name.replace("/", "_")}.json')
+            if shared.opts.gradio_themes_cache and os.path.exists(theme_cache_path):
+                shared.gradio_theme = gr.themes.ThemeClass.load(theme_cache_path)
+            else:
+                os.makedirs(theme_cache_dir, exist_ok=True)
+                gradio_theme = gr.themes.ThemeClass.from_hub(theme_name)
+                gradio_theme.dump(theme_cache_path)
+        except Exception as e:
+            errors.display(e, "changing gradio theme")
+            shared.gradio_theme = gr.themes.Default(**default_theme_args)