embedding angular material icons dont works

[baggior]

cov.covalent-material-icons();
always download icons from google site instead I wish to embed in my bundle

reading the page https://teradata.github.io/covalent/v8/#/docs/theming/sass-mixins

// Include pre-bundled material-icons
$mat-font-url: '../node_modules/@covalent/core/common/styles/font/';
cov.covalent-material-icons();

but looking at performed netowrk requests it doesn't works as expected

Loking inside the code I've found that the variable $mat-font-url is not used at all in common/styles/font/_font.scss since tag version 8.1.0

covalent/libs/angular/common/styles/font/_font.scss

Line 1 in 0263a20

$mat-font-url: 'styles/font/' !default;