Color system and initial color schema.

src/index.tsx

@@ -3,11 +3,14 @@ import ReactDOM from 'react-dom';
 import { RecoilRoot } from 'recoil';
 import './index.scss';
 import App from './App';
+import { ConfigProvider } from 'antd';
 
 ReactDOM.render(
   <React.StrictMode>
     <RecoilRoot>
-      <App />
+      <ConfigProvider>
+        <App />
+      </ConfigProvider>
     </RecoilRoot>
   </React.StrictMode>,
   document.getElementById('root')