Improve live region painting visibility in ImageEditor

app.py

@@ -22,6 +22,7 @@ from io import StringIO, BytesIO
 HAS_IMAGE_EDITOR = hasattr(gr, "ImageEditor")
 HAS_BRUSH = hasattr(gr, "Brush")
 HAS_ERASER = hasattr(gr, "Eraser")
+HAS_LAYER_OPTIONS = hasattr(gr, "LayerOptions")
 
 # Model options — swap MODEL_NAME to reduce VRAM usage on GPUs with <= 8GB
 #
@@ -1344,17 +1345,20 @@ with gr.Blocks(title="DeepSeek-OCR-2") as demo:
                 editor_kwargs = {}
                 if HAS_BRUSH:
                     try:
+                        highlight = ("#2563eb", 0.58)
                         editor_kwargs["brush"] = gr.Brush(
-                            colors=["rgba(37, 99, 235, 0.28)"],
-                            default_color="rgba(37, 99, 235, 0.28)",
+                            colors=[highlight],
+                            default_color=highlight,
                             color_mode="fixed",
                             default_size=28,
                         )
                     except TypeError:
                         try:
                             editor_kwargs["brush"] = gr.Brush(
-                                colors=["rgba(37, 99, 235, 0.28)"],
+                                colors=["#2563eb"],
+                                default_color="#2563eb",
                                 color_mode="fixed",
+                                default_size=28,
                             )
                         except TypeError:
                             editor_kwargs["brush"] = gr.Brush()
@@ -1363,6 +1367,11 @@ with gr.Blocks(title="DeepSeek-OCR-2") as demo:
                         editor_kwargs["eraser"] = gr.Eraser(default_size=26)
                     except TypeError:
                         editor_kwargs["eraser"] = gr.Eraser()
+                if HAS_LAYER_OPTIONS:
+                    try:
+                        editor_kwargs["layers"] = gr.LayerOptions(allow_additional_layers=False)
+                    except TypeError:
+                        pass
                 region_editor = gr.ImageEditor(
                     label="Main image workspace. Recommended: freehand/highlight the target area, then click Add Region. (Crop tool for rectangles is optional.)",
                     type="pil",