fade background view while displaying the drop down

[kamit971]

Hi Team, i am using this library, its working perfect, able to customize according to the requirement but not able to fade the background color while showing the dropdown and remove the fading while hide the drop down. where to write the code .

<ModalDropdown style={styles.dropdown_2} options={DEMO_OPTIONS_1} // opacity={0.8} dropdownStyle={styles.dropdown_2_dropdown} renderRow={this._dropdown_2_renderRow.bind(this)}

                       >
          <Image style={styles.dropdown_6_image}
                 source={dropdown_6_icon}
          />
        </ModalDropdown>