Running the demo app is blank

[EastSunHe]

Description

Steps To Reproduce

Code sample

macOS 12.6.8  version< 13.0
macos_ui: ^2.0.9

Expected behavior

Screenshots

Logs

Logs

flutter: Warning: Falling back on slow accent color resolution. It’s possible that the accent colors have changed in a recent version of macOS, thus invalidating macos_ui’s accent colors, which were captured on macOS Ventura. If you see this message, please notify a maintainer of the macos_ui package.