Before OS X Big Sur it was working fine (screenshots 2 and 3) using this code:
let prog = NSProgressIndicator(frame: NSMakeRect(1, 2, 18, 18))
let statusItem = NSStatusBar.system.statusItem(withLength: NSStatusItem.variableLength)
prog.style = .spinning
prog.isIndeterminate = false
statusItem.button?.addSubview(prog)
statusItem.menu = statusMenu
But after update, it appears with 4 corners and empty inside (first screenshot).
Any idea how to fix?
UPDATE 1: After following El Tomato suggestions:
prog.controlSize = .small
prog.controlTint = .blueControlTint
prog.appearance = NSAppearance(named: .vibrantLight)
it looks like this:
But how to make it look as in Catalina (Pie chart)