[Feature Request] 建议selected加个选中颜色的配置

[xiaoli9y8]

Existing Component

是

Component Name

selected

Description

selected加个选中颜色的配置, 有时候穿透无法生效, 便于开发者开发

[xiaoli9y8]

11111

[5z5]

对element-ui不太熟，可以具体描述一下么

[lm312]

改问题我做了修改，看是否是你需要的效果，具体修改见下面链接 https://github.com/ElemeFE/element/pull/22081#issue-1332842177