Update app.py

app.py

@@ -203,7 +203,7 @@ async def on_message(message):
                 e = await message.reply(embed=embed)
             if imgp != "":
                 try:
-                    image = await SD.text_to_image(imgp, negative_prompt="low quality, blurred")
+                    image = await SD.text_to_image(imgp, negative_prompt="low quality, blurred, flat, nsfw")
                     image.save("image.png")
                     embed.set_footer(
                         text=