When update to v4, the theme cannot modify as expected.

[shiwanjun1995]

• I have searched the issues of this repository and believe that this is not a duplicate.

What problem does this feature solve?

when i used v3, i can follow this link to do it.(https://3x.antdv.com/docs/vue/customize-theme)
but now v4, it cannot effort some help to me.(https://next.antdv.com/docs/vue/customize-theme-cn)

What does the proposed API look like?

it seems like antd@5, we can modify theme as simple.(https://ant.design/docs/react/customize-theme-cn)

[shiwanjun1995]

Just like this as bellow:

1. UI升级为v4版本之后，没有办法自定义某个组件的主题了 #7759
2. 真的没搞懂 ！！！4.x 版本theme主题不支持组件级的样式调整，明明文档说的很清楚但源码里写的却是相反的逻辑 #7607 @afc163
3. menu menuItemHeight如何修改 #8027