How do you remove horn button-69 Dart GTS?

I now this is elementary for most of you guys, but I've never done it. I have a 69 Dart GTS and I need to remove the horn button to get it dyed to match my interior dashboard.

How doe sit come off?

The car is already restored but the guy had ther wrong color hor button leather. I don't want ot start hacking away at the steering wheel or column.

Thanks

Chas