A Compose Dialog owns its own Window whose status/navigation-bar icon
appearance is seeded from the XML theme, not from the host activity's
runtime edge-to-edge state. With decorFitsSystemWindows = false the
FullScreenPicker draws under the bars, exposing icons that don't match
the active theme — dark icons on a dark picker (near-invisible), and the
mirror-image nav-bar bug in light theme.
Expose the resolved light/dark decision from FloretExpressiveTheme as
LocalFloretDarkTheme and drive the dialog window's
isAppearanceLight{Status,Navigation}Bars from it, so the appearance
tracks the in-app light/dark choice even when it diverges from the
system night resource qualifier.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Jean-Luc Makiola
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