moodle_theme_ilb/scss/moodle/icons.scss

// The only class we need for icons is .icon
// Standardize the size, padding and alignment for all icons in Moodle.

// Size of default icons.
$icon-width: 16px;
$icon-height: 16px;
// Size of big icons.
$icon-big-width: 64px;
$icon-big-height: 64px;

// stylelint-disable
$iconsizes: () !default;
$iconsizes: map-merge((
  0: 0,
  1: ($icon-width * .25),
  2: ($icon-width * .5),
  3: $icon-width,
  4: ($icon-width * 1.5),
  5: ($icon-width * 3)
), $iconsizes);
// stylelint-enable

.icon {
    font-size: $icon-height;
    width: $icon-width;
    height: $icon-height;
    // vertical-align: middle;
    margin: 0;
    padding: 0;
    box-sizing: content-box;
    margin-right: 0.5rem;

    &.spacer {
        margin-right: 0;
    }

    &.iconsize-big {
        width: $icon-big-width;
        height: $icon-big-height;
        font-size: $icon-big-height;
    }
}

.navbar-dark a .icon {
    color: $navbar-dark-color !important; /* stylelint-disable-line declaration-no-important */
}

.action-menu-item a:first-of-type > .icon {
    margin-left: 0.5rem;
}

// YUI 2 Tree View icons must not have a margin left.
.ygtvcell .icon {
    margin-left: 0 !important; /* stylelint-disable-line declaration-no-important */
}

// In the navigation, tree icons should not have margins.
.block_navigation,
.block_settings {
    .tree_item .icon {
        margin-left: 0;
    }
}

[data-action=toggle-drawer] .icon {
    margin: 0;
}

// Apply in special cases where the default icons styles does not work properly. Eg file picker buttons.
.icon-no-spacing a > .icon {
    margin: 0;
}

.icon-no-margin {
    .icon {
        margin-left: 0;
        margin-right: 0;
        margin-top: 0;
        margin-bottom: 0;
    }
}

.icon-large > .icon {
    width: ($icon-width * 2);
    height: ($icon-height * 2);
}

@each $size, $length in $iconsizes {
    .icon-size-#{$size} {
        .icon {
            height: $length !important; /* stylelint-disable-line declaration-no-important */
            width: $length !important; /* stylelint-disable-line declaration-no-important */
            font-size: $length !important; /* stylelint-disable-line declaration-no-important */
        }
    }
}

.helplink .icon {
    margin-left: 0.5rem;
}