[BUG] - ViewStyle does not allow color

[peterkuiper]

Describe the bug

When passing iconStyle={{ color: 'white' }} I am getting a typescript error:

Type '{ color: string; }' has no properties in common with type 'ViewStyle'.

This is due to iconStyle?: ViewStyle in index.d.ts. A simple solution would be to use any instead of ViewStyle. See https://github.com/oblador/react-native-vector-icons/blob/d969f8c8ba1cb6852b723af6ee4fefc4ee85b083/lib/icon-button.js#L80

To Reproduce

        <NumericInput 
            value={this.state.value} 
            onChange={value => this.setState({value})} 
            onLimitReached={(isMax,msg) => console.log(isMax,msg)}
            totalWidth={240} 
            totalHeight={50} 
            iconSize={25}
            step={1.5}
            valueType='real'
            rounded 
            textColor='#B0228C' 
            iconStyle={{ color: 'white' }} 
            rightButtonBackgroundColor='#EA3788' 
            leftButtonBackgroundColor='#E56B70'/>

Expected behavior

I would not expect a TypeScript error when using iconStyle.

Enviorment (please complete the following information):

• Version: 1.8.3
• React Native version: 0.61.4
• Device: n/a
• Device OS: n/a

[peterkuiper]

It should be TextStyle instead of ViewStyle:

iconStyle is only used on <Icon> which uses TextStyle, see https://github.com/DefinitelyTyped/DefinitelyTyped/blob/5a1c6ca6270addfda40b781d3ba65e716b162197/types/react-native-vector-icons/Icon.d.ts#L58

[ehdwns980416]

+1