How to use the @dhis2/ui-core.colors.yellow050 function in @dhis2/ui-core

render() {
        const height = Math.max(this.props.height, 0) + DRAG_HANDLE_HEIGHT;

        const rootStyle = Object.assign(
            {
                height,
                top: HEADERBAR_HEIGHT,
                backgroundColor: this.props.editMode
                    ? colors.yellow050
                    : colors.white,
                paddingBottom: DRAG_HANDLE_HEIGHT,
            },
            // Disable animations while dragging
            this.state.dragging ? { transition: 'none' } : {}
        );

        return (
            <div style="{rootStyle}">
                <div>{this.props.children}</div>
                {this.renderDragHandle()}
            </div>
        );
    }
}