Jetpack Compose Dark Theme Theme File

Theme.kt

private val DarkColorPalette = darkColorScheme(
    primary = PrimaryDark,
    onPrimary = OnPrimaryDark,
    primaryContainer = PrimaryContainerDark,
    onPrimaryContainer = OnPrimaryContainerDark,
    secondary = SecondaryDark,
    onSecondary = OnSecondaryDark,
    secondaryContainer = SecondaryContainerDark,
    onSecondaryContainer = OnSecondaryContainerDark,
    tertiary = TertiaryDark,
    onTertiary = OnTertiaryDark,
    tertiaryContainer = TertiaryContainerDark,
    onTertiaryContainer = OnTertiaryContainerDark,
    error = ErrorDark,
    onError = OnErrorDark,
    errorContainer = ErrorContainerDark,
    onErrorContainer = OnErrorContainerDark,
    background = BackgroundDark,
    onBackground = OnBackgroundDark,
    surface = SurfaceDark,
    outline = OutlineDark,
    surfaceVariant = SurfaceVariantDark,
    onSurfaceVariant = OnSurfaceVariantDark,
)

private val LightColorPalette = lightColorScheme(
    primary = PrimaryLight,
    onPrimary = OnPrimaryLight,
    primaryContainer = PrimaryContainerLight,
    onPrimaryContainer = OnPrimaryContainerLight,
    secondary = SecondaryLight,
    onSecondary = OnSecondaryLight,
    secondaryContainer = SecondaryContainerLight,
    onSecondaryContainer = OnSecondaryContainerLight,
    tertiary = TertiaryLight,
    onTertiary = OnTertiaryLight,
    tertiaryContainer = TertiaryContainerLight,
    onTertiaryContainer = OnTertiaryContainerLight,
    error = ErrorLight,
    onError = OnErrorLight,
    errorContainer = ErrorContainerLight,
    onErrorContainer = OnErrorContainerLight,
    background = BackgroundLight,
    onBackground = OnBackgroundLight,
    surface = SurfaceLight,
    outline = OutlineLight,
    surfaceVariant = SurfaceVariantLight,
    onSurfaceVariant = OnSurfaceVariantLight,
)

@Composable
fun JetpackComposeDarkThemeTheme(
    darkTheme: Boolean = isSystemInDarkTheme(),
    content: @Composable () -> Unit
) {
    val colors = if (darkTheme) {
        DarkColorPalette
    } else {
        LightColorPalette
    }

    MaterialTheme(
        colorScheme = colors,
        typography = Typography,
        shapes = Shapes,
        content = content
    )
    
    // Optional, this part helps you set the statusbar color
    val view = LocalView.current
    if (!view.isInEditMode) {
        SideEffect {
            val window = (view.context as Activity).window
            window.statusBarColor = colors.background.toArgb()

            WindowCompat.getInsetsController(window, view)
                .isAppearanceLightStatusBars = !darkTheme
        }
    }
}