ios – Cannot change icon coloration regular state on UITabBar on iOS26

so, i am scuffling with updating some issues on my iOS App with the iOS 26. Mainly, i can not perceive why i can change each coloration of the gadgets of the tab bar besides the icon coloration for regular state.

i’ve this code for that objective:

look.stackedLayoutAppearance.chosen.iconColor = R.coloration.lightGreen()
look.stackedLayoutAppearance.chosen.titleTextAttributes = [NSAttributedString.Key.foregroundColor: R.color.lightGreen()!]

look.stackedLayoutAppearance.regular.iconColor = R.coloration.darkGray()
look.stackedLayoutAppearance.regular.titleTextAttributes = [NSAttributedString.Key.foregroundColor: R.color.darkGray()!]

The whole lot is working besides this line:

look.stackedLayoutAppearance.regular.iconColor = R.coloration.darkGray()

Which leads to this:

Any assist?