i have some custom bar button items in my navigation controller.
(maxi
Adding to Anindya Answer:
In Xcode 9.2,
You can change the "Render As" property to "Original" in Attribute Inspector of Assets. This will prevent NavigationBar.TintColor to take effect on that Image if you used it in UIBarButtonItem
"Render As"
"Original"
NavigationBar.TintColor
UIBarButtonItem