Are mode and theme imports required for react-ace?

[goongoguma]

Not an issue but have a question.

I am using the library for my project.
According to the document, if I want to use mode and theme, two import statements are needed.

import "ace-builds/src-noconflict/mode-java";
import 'ace-builds/src-noconflict/theme-github';

 <AceEditor
    mode="java"
    theme="github"
    onChange={onChange}
    name="UNIQUE_ID_OF_DIV"
    editorProps={{ $blockScrolling: true }}
  />,

However, seems like the mode and the theme of editor can be set only passing props to the AceEditor component without declaring those import statements.

Can any issue be introduced if I omit those statments?