dark luncher ios icon not working

[heshesh2010]

image_path_android: "assets/png/adaptive_icon_foreground.png"
adaptive_icon_foreground: "assets/png/adaptive_icon_foreground.png"
adaptive_icon_background: "#1B8354"
adaptive_icon_foreground_inset: 15
min_sdk_android: 21

iOS icon

image_path_ios: "assets/png/ic_launcher.png"
image_path_ios_dark_transparent: "assets/png/ic_launcher_dark.png"
background_color_ios: "#033574"
remove_alpha_ios: true
remove_alpha_channel_ios: true

notification_icons:
ios:
image_path: "assets/png/ic_launcher.png"
sizes: [20, 40, 60, 1024]

when I toggle ios emulator appearance to light or dark mode I see only light icon is showing