Replace mat-icon with SVG graphic

Angular newbie here..could someone direct me to the right way how could I replace the existing Material icons with custom ones properly, more precisely with the SVG graphics? Something like this:

So this:

<mat-icon class="mat-icon-rtl-mirror">
     
</mat-icon>

With this:

<mat-icon class="mat-icon-rtl-mirror">
     
</mat-icon>

from Replace mat-icon with SVG graphic