Update app.py

app.py

@@ -61,8 +61,9 @@ if __name__ == '__main__':
 
     gr.Interface(
         ai_text,
-        inputs=gr.inputs.Textbox(),
+        inputs=[gr.inputs.Textbox(lines=4)],
         outputs=[gr.outputs.Textbox()],
+        theme="grass",
         title="Chinese Spelling Correction Model shibing624/macbert4csc-base-chinese",
         description="Copy or input error Chinese text. Submit and the machine will correct text.",
         article="Link to <a href='https://github.com/shibing624/pycorrector' style='color:blue;' target='_blank\'>Github REPO</a>",