chore: Update Gradio UI layout for image generation and processing

app.py

@@ -201,10 +201,36 @@ with gr.Blocks() as demo:
         with gr.Tab("Generate Image and Remove Background"):
             with gr.Row():
                 subject = gr.Textbox(label='Subject', scale=2)
-                style = gr.Textbox(label='Style', scale=2)
-                color_scheme = gr.Textbox(label='Color Scheme', scale=2)
-                angle = gr.Textbox(label='Angle', scale=2)
-                lighting_type = gr.Textbox(label='Lighting Type', scale=2)
+                style = gr.Dropdown(
+                    label='Style',
+                    choices=['Pixar-like', 'Disney-esque', 'Anime-inspired'],
+                    value='Pixar-like',
+                    multiselect=False,
+                    scale=2
+                )
+                color_scheme = gr.Dropdown(
+                    label='Color Scheme',
+                    choices=['Vibrant', 'Pastel',
+                             'Monochromatic', 'Black and White'],
+                    value='Vibrant',
+                    multiselect=False,
+                    scale=2
+                )
+                angle = gr.Dropdown(
+                    label='Angle',
+                    choices=['Front', 'Side', 'Three-quarter'],
+                    value='Front',
+                    multiselect=False,
+                    scale=2
+                )
+                lighting_type = gr.Dropdown(
+                    label='Lighting Type',
+                    choices=['Bright and Even',
+                             'Dramatic Shadows', 'Soft and Warm'],
+                    value='Bright and Even',
+                    multiselect=False,
+                    scale=2
+                )
                 additional_details = gr.Textbox(
                     label='Additional Details', scale=2)
                 submit_prompt = gr.Button(