Adding custom icons to Material horizantal stepper

[Satish]

I see the Material horizantal stepper supports only create & done icons. I would like to use custom icons for each step. 

Is there any way to use custom icons. i tried in below ways but its not reflecting.

<mat-step label="HPC2">

<ng-template matStepperIcon="keyboard_arrow_right" class="mat-step-icon">

HPC1

<mat-icon>keyboard_arrow_right</mat-icon>

</ng-template>

This is all my content

</mat-step>

[Yang]

ng-template should be defined outside of the mat-step.

[Raffaella Sinisi]

Hello, I have the same problem, could you give en example? Thank you.