How to change background color of RectButton?

[dmitryn]

Hello 👋

I'm trying to change background color of RectButton using underlayColor prop.

But that doesn't seem to work as expected. For example, using #DC143C results in background color changing to pink, but not to #DC143C. Other colors i've tried also aren't working as expected.

I've put up an example demonstrating the issue https://snack.expo.io/@dmitryn/healthy-bagel

[dmitryn]

You have to set activeOpacity=1 to get exact color you set in underlayColor.
Default value for activeOpacity is 0.105

Also, underlayColor is iOS only option, but it isn't mentioned in docs.