How to use the co/style/colors.themed.invertedMedium function in co

export const BaseInput = styled.TextInput.attrs(props=>({
	enablesReturnKeyAutomatically: true,
	blurOnSubmit: true,
	underlineColorAndroid: 'transparent',
	disableFullscreenUI: true,
	placeholderTextColor: themed.invertedMedium(props),
	keyboardAppearance: themeIsDark(props)?'dark':'default',
	numberOfLines: 1
}))`
	font-size: ${fontSize.normal}px;

export const LoadingWrap = styled.ActivityIndicator.attrs(props=>({
	color: themed.invertedMedium(props)
}))`
	position: absolute;

tint-color: ${({theme})=>{
		if (theme.itemSelected === true)
			return 'white'

		return themed.invertedMedium({theme})
	}};
`

export const Loading = withTheme(props => (
    
))

...Platform.select({
            ios: {
                drawBehind: true
            }
        })
    },
    navigationBar: (Platform.Version >= 27 ? {
        backgroundColor: themed.main()
    } : {}),
    bottomTab: {
        selectedIconColor: themed.tintColor(),
        selectedTextColor: themed.tintColor(),

        iconColor: themed.invertedMedium(),
        textColor: themed.invertedMedium(),

        fontFamily: 'sans-serif-medium',
        fontSize: 13,
        selectedFontSize: 13
    },
    animations: {
        setRoot: {
            enabled: true,
            waitForRender: true,
            ...Platform.select({
                ios: {
                    content: fadeIn
                },
                android: fadeIn
            })
        },

elevation: 22,

        ...Platform.select({
            ios: {
                drawBehind: true
            }
        })
    },
    navigationBar: (Platform.Version >= 27 ? {
        backgroundColor: themed.main()
    } : {}),
    bottomTab: {
        selectedIconColor: themed.tintColor(),
        selectedTextColor: themed.tintColor(),

        iconColor: themed.invertedMedium(),
        textColor: themed.invertedMedium(),

        fontFamily: 'sans-serif-medium',
        fontSize: 13,
        selectedFontSize: 13
    },
    animations: {
        setRoot: {
            enabled: true,
            waitForRender: true,
            ...Platform.select({
                ios: {
                    content: fadeIn
                },
                android: fadeIn
            })