Update theme, header

app.py

@@ -300,23 +300,23 @@ def create_video_inputs() -> List[gr.components.Component]:
     ]
 
 
-def create_button_row(is_image: bool) -> List[gr.Button]:
-    prefix = "Image" if is_image else "Video"
+def create_button_row() -> List[gr.Button]:
     return [
         gr.Button(
-            f"{prefix} Detect Objects", variant="primary", elem_classes="action-button"
+            f"Detect Objects", variant="primary", elem_classes="action-button"
         ),
-        gr.Button(f"{prefix} Clear", variant="secondary", elem_classes="action-button"),
+        gr.Button(f"Clear", variant="secondary", elem_classes="action-button"),
     ]
 
 
 # Gradio interface
-with gr.Blocks(theme=gr.themes.Soft()) as demo:
+with gr.Blocks(theme=gr.themes.Ocean()) as demo:
     gr.Markdown(
         """
-        # Real-Time Object Detection Demo
-        Experience state-of-the-art object detection with USTC's Dfine models. Upload an image or video,
-        provide a URL, or try an example below. Select a model and adjust the confidence threshold to see detections in real time!
+        # Object Detection Demo
+        Experience state-of-the-art object detection with USTC's D-Fine models.
+         - **Image** and **Video** modes are supported.
+         - Select a model and adjust the confidence threshold to see detections!
         """,
         elem_classes="header-text",
     )
@@ -333,9 +333,7 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
                             image_model_checkpoint,
                             image_confidence_threshold,
                         ) = create_image_inputs()
-                        image_detect_button, image_clear_button = create_button_row(
-                            is_image=True
-                        )
+                        image_detect_button, image_clear_button = create_button_row()
                 with gr.Column(scale=2):
                     image_output = gr.AnnotatedImage(
                         label="Detection Results",
@@ -374,12 +372,8 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
             with gr.Row():
                 with gr.Column(scale=1, min_width=300):
                     with gr.Group():
-                        video_input, video_checkpoint, video_confidence_threshold = (
-                            create_video_inputs()
-                        )
-                        video_detect_button, video_clear_button = create_button_row(
-                            is_image=False
-                        )
+                        video_input, video_checkpoint, video_confidence_threshold = create_video_inputs()
+                        video_detect_button, video_clear_button = create_button_row()
                 with gr.Column(scale=2):
                     video_output = gr.Video(
                         label="Detection Results",