[feature request] improvement of navigation menu of elementui

[jay-qianjue]

Existing Component

是

Component Name

导航菜单

Description

在日常的开发需求中，当使用导航菜单左侧栏时，经常会遇到下面的这个需求，当选中激活菜单时，会更改当前的背景颜色，但是目前组件只提供了修改文字颜色，所以当我去完成此需求时，往往感觉很难受，求求官方大大，满足满足我这个需求吧

[element-bot]

Translation of this issue:

Existing Component

yes

Component Name

Navigation menu

Description

In the daily development needs, when using the left bar of the navigation menu, we often encounter the following needs. When the activation menu is selected, the current background color will be changed, but at present, the component only provides the text color to be modified, so when I go to complete this requirement, I always feel very uncomfortable. I hope it can meet my needs

[zhazhanitian]

@element-bot

I think this is a very reasonable demand. I want to take over and do it, and then put forward PR, OK?

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.