Update app.py

app.py

@@ -40,7 +40,7 @@ def run(image, model_name):
 		file(file_path),	# filepath in 'Image input' Image component
 		"Auto Remove background",	# Literal['Alpha as mask', 'Auto Remove background'] in 'backgroud choice' Radio component
 		1,	# float (numeric value between 0.5 and 1.0) in 'Foreground Ratio' Slider component
-		"#000000",	# str in 'Background Color' Colorpicker component
+		"#7F7F7F",	# str in 'Background Color' Colorpicker component
 		api_name="/preprocess_image"
         )