node_modules/@angular/material/list/_list-theme.scss

@import '../core/theming/palette';
@import '../core/theming/theming';
@import '../core/typography/typography-utils';
@import '../core/style/list-common';


@mixin mat-list-color($config-or-theme) {
  $config: mat-get-color-config($config-or-theme);
  $background: map-get($config, background);
  $foreground: map-get($config, foreground);

  .mat-list-base {
    .mat-list-item {
      color: mat-color($foreground, text);
    }

    .mat-list-option {
      color: mat-color($foreground, text);
    }

    .mat-subheader {
      color: mat-color($foreground, secondary-text);
    }
  }

  .mat-list-item-disabled {
    background-color: mat-color($background, disabled-list-option);
  }

  .mat-list-option,
  .mat-nav-list .mat-list-item,
  .mat-action-list .mat-list-item {
    &:hover, &:focus {
      background: mat-color($background, 'hover');
    }
  }

  .mat-list-single-selected-option {
    &, &:hover, &:focus {
      background: mat-color($background, hover, 0.12);
    }
  }
}

@mixin mat-list-typography($config-or-theme) {
  $config: mat-get-typography-config($config-or-theme);
  $font-family: mat-font-family($config);

  .mat-list-item {
    font-family: $font-family;
  }

  .mat-list-option {
    font-family: $font-family;
  }

  // Default list
  .mat-list-base {
    .mat-list-item {
      font-size: mat-font-size($config, subheading-2);
      @include mat-line-base(mat-font-size($config, body-1));
    }

    .mat-list-option {
      font-size: mat-font-size($config, subheading-2);
      @include mat-line-base(mat-font-size($config, body-1));
    }

    .mat-subheader {
      font-family: mat-font-family($config, body-2);
      font-size: mat-font-size($config, body-2);
      font-weight: mat-font-weight($config, body-2);
    }
  }

  // Dense list
  .mat-list-base[dense] {
    .mat-list-item {
      font-size: mat-font-size($config, caption);
      @include mat-line-base(mat-font-size($config, caption));
    }

    .mat-list-option {
      font-size: mat-font-size($config, caption);
      @include mat-line-base(mat-font-size($config, caption));
    }

    .mat-subheader {
      font-family: $font-family;
      font-size: mat-font-size($config, caption);
      font-weight: mat-font-weight($config, body-2);
    }
  }
}

@mixin _mat-list-density($config-or-theme) {}

@mixin mat-list-theme($theme-or-color-config) {
  $theme: mat-private-legacy-get-theme($theme-or-color-config);
  @include mat-private-check-duplicate-theme-styles($theme, 'mat-list') {
    $color: mat-get-color-config($theme);
    $density: mat-get-density-config($theme);
    $typography: mat-get-typography-config($theme);

    @if $color != null {
      @include mat-list-color($color);
    }
    @if $density != null {
      @include _mat-list-density($density);
    }
    @if $typography != null {
      @include mat-list-typography($typography);
    }
  }
}