Try gradio 6.7.0 rollback and transparent brush fallback

README.md

@@ -4,7 +4,7 @@ emoji: 🧮
 colorFrom: red
 colorTo: blue
 sdk: gradio
-sdk_version: 6.8.0
+sdk_version: 6.7.0
 app_file: app.py
 pinned: true
 short_description: DeepSeek-OCR-2 with MathJax math rendering

app.py

@@ -1408,8 +1408,8 @@ with gr.Blocks(title="DeepSeek-OCR-2") as demo:
                     except TypeError:
                         try:
                             editor_kwargs["brush"] = gr.Brush(
-                                colors=["#2563eb"],
-                                default_color="#2563eb",
+                                colors=["rgba(37,99,235,0.35)"],
+                                default_color="rgba(37,99,235,0.35)",
                                 color_mode="fixed",
                                 default_size=22,
                             )