How to use the @dhis2/ui-core.colors.grey900 function in @dhis2/ui-core

const getLink = contentItem => {
        const deleteButton = (
            <button> tRemoveListItemContent(item, contentItem)}
            &gt;
                
            </button>
        );

        return (
            
                <a href="{getItemUrl(item.type," style="{{">
                    {contentItem.name}
                </a>
                {editMode ? deleteButton : null}
            
        );
    };