.components-checkbox-control__input[type="checkbox"] {
&.components-checkbox-control__input--indeterminate {
background: var(--wp-admin-theme-color);
border-color: var(--wp-admin-theme-color);
// Hide default checkbox styles in IE.
&::-ms-check {
opacity: 0;
}
}
&.components-checkbox-control__input--indeterminate::before {
content: none;
}
}