Update alpha blending weights in app.py from 0.3 and 0.7 to 0.2 and 0.8 for improved image generation results.

app.py

@@ -152,14 +152,14 @@ def infer(
         num_images_per_prompt=1,
     ).images
 
-    # Alpha blend: input (0.3) + generated (0.7)
+    # Alpha blend: input (0.2) + generated (0.8)
     if result_images and pil_image is not None:
         generated_image = result_images[0]
         # Resize input image to match generated image size if different
         if pil_image.size != generated_image.size:
             pil_image = pil_image.resize(generated_image.size, Image.Resampling.LANCZOS)
-        # Blend: 0.3 * input + 0.7 * generated
-        blended_image = Image.blend(pil_image, generated_image, alpha=0.7)
+        # Blend: 0.2 * input + 0.8 * generated
+        blended_image = Image.blend(pil_image, generated_image, alpha=0.8)
         return blended_image, seed
 
     # Return first result image and seed