Describe the bug

On Android, toga.DetailedList item text is rendered in hard-coded black.
This makes it unreadable when the app is in dark mode (Theme.Material3.DayNight.NoActionBar).
iOS adapts correctly to system dark/light mode.
Android theme background switches correctly, but list text does not follow.

Steps to reproduce

1. Set up a Toga app on Android with:

base_theme = "Theme.Material3.DayNight.NoActionBar"

2. Add a DetailedList with a few items.

3. Switch the device/emulator to dark mode.

Expected behavior

DetailedList item text should use the theme’s primary/secondary text colors (white-ish in dark mode, black-ish in light mode).

Screenshots

Environment

• Operating System: macOS 15.6.1
• Python: 3.13.4
• Briefcase: 0.3.24
• Toga: 0.5.2

Logs

Additional context

https://github.com/beeware/toga/tree/main/android/src/toga_android/widgets/detailedlist.py lines 183-185 state:

top_text.setTextColor(
self._native_activity.getResources().getColor(R.color.black)
)

and lines 187-189 state:

bottom_text.setTextColor(
self._native_activity.getResources().getColor(R.color.black)
)

Potential fix: Maybe black should be replaced with ?android:attr/textColorPrimary and ?android:attr/textColorSecondary (resolved at runtime).