React-native-navigation: mergeOptions doesn't work on leftButtonColor or rightButtonColor

[falsesheep]

Issue Description

mergeOptions doesn't work on leftButtonColor or rightButtonColor

Steps to Reproduce / Code Snippets / Screenshots

1. Set leftButtonColor and rightButtonColor in options

static options(passProps) {
    return {
       topBar: {
        leftButtonColor: "white",
        rightButtonColor: "white",
        title: {
          text: 'Home',
          color: 'white'
        },
        leftButtons: [
          {
            id: 'btnMsgL',
            icon: require('resources/icon_message.png')
          }
        ],
        rightButtons: [
          {
            id: 'btnMsgR',
            icon: require('resources/icon_message.png')
          }
        ],
      }
    }
}

1. Then change the leftButtonColor and rightButtonColor when triggered.

Navigation.mergeOptions(this.props.componentId,{
      topBar: {
        leftButtonColor: 'black',
        rightButtonColor: 'black',
        title: {
          color: 'black'
        },
      }
    });

1. The left button and the right button color remains white, while they should be black.
   The title color changed. Which means this code is executed.

Before trigger:

After trigger:

---

Environment

• React Native Navigation version: 2.20.0
• React Native version: 0.59.8
• Platform(s) (iOS, Android, or both?): iOS
• Device info (Simulator/Device? OS version? Debug/Release?): iPhone X 11.4 Simulator

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.
If you believe the issue is still relevant, please test on the latest Detox and report back. Thank you for your contributions.

[stale[bot]]

The issue has been closed for inactivity.

[bneigher]

still seems to be an issue

[JimTeva]

Still an issue in 3.2.0-snapshot.524