nzPrefixIcon in nz-input-group has a hardcoded style that brakes scss theme

[Dimanoid]

Code link

ng-zorro-antd/components/input/nz-input-group.component.html

Line 23 in 9499aec

<i nz-icon [nzType]="nzPrefixIcon" *ngIf="nzPrefixIcon" style="color: rgba(0, 0, 0, 0.25)"></i>

Steps to reproduce

nz-input-group.component.html
line 23
<i nz-icon [nzType]="nzPrefixIcon" *ngIf="nzPrefixIcon" style="color: rgba(0, 0, 0, 0.25)">

What is expected?

nz-input-group should not to have hardcoded color style in template

What is actually happening?

Icons color defined in theme.less is overridden by hardcoded style in nz-input-group template

Environment	Info
ng-zorro-antd	8.1.2
Browser	any

[wzhudev]

Yes. The reason why we wrote this is that antd doesn't provide this style in less files. See https://ant.design/components/input/#components-input-demo-presuffix.

Could you please open an issue there first? https://github.com/ant-design/ant-design