Zoom C++ Sdk Internal UI Change

I’d like to change the internal UI of Zoom from C++ I am inquiring because the internal UI has not changed as shown in the picture.
version number: 4.6.15798.0403

Hi kimwansoo8947,

Thanks for using Zoom SDK. Do you want to change the icons shown in the red box or do you want to change the whole UI? If you would like to change the whole UI, you will need to use custom UI.