COCO format required

[zchrissirhcz]

Consider parsing and drawing COCO box & seg labels

Consider adjust UI, ref: https://www.cnblogs.com/hhh5460/p/5170744.html

[zchrissirhcz]

Using tabs is a better UI layout. This is called Notebook in ttk.
ref: https://blog.csdn.net/weixin_42272768/article/details/100876753