在OSX中更改按钮的背景色

Question

I want to change the background color of a button in a dialog to red, if a specific option is enabled. I tried

run.backgroundColor = NSColor.red

but nothing happens. (run is the name of the button) There are similar questions, but no answers. And these questions are years old. I hope there is a simple solution, bc. this seems not an unusual approach. Again, it belongs to OSX (and SWIFT 3).

Answer 1

NSButton doesn't have a backgroundColor property, but it's CALayer does. So, to get the same effect you could do the following:

myButton.wantsLayer = true
myButton.layer?.backgroundColor = NSColor.red.cgColor