The Project Options - iOS Application screen still doesn't support the new icon sizes and varieties that are in Xcode. For example, the 76x76, 120x120, and 152x152. It also doesn't recognize that if you set your target to 7 that you only need 3 app icons.
Coming soon? File a bug? Edit info.plist manually?
I'm on the alpha channel running XS 4.1.9 and Xamarin.iOS 22.214.171.124