自定义主题修改了主题色后，message.loading 图标依然是蓝色 #8040
Description
- I have searched the issues of this repository and believe that this is not a duplicate.
Version
4.2.6
Environment
任意环境
Reproduction link
Steps to reproduce
所有情况都是
What is expected?
message.loading 图标颜色是否考虑跟随主题色，会和主题更统一
What is actually happening?
图标颜色跟随的 colorInfo
