register
abstract fun register(flow: Flow<Boolean>, colorMode: ColorMode = ColorMode.ThemeBased, statusColorMode: ColorMode = colorMode, navigationColorMode: ColorMode = colorMode, systemBarAlpha: Int = SEMI_TRANSPARENT_ALPHA, @IntRange(from = 0, to = 255) statusBarAlpha: Int = systemBarAlpha, @IntRange(from = 0, to = 255) navigationBarAlpha: Int = systemBarAlpha): SystemBarColorHelperBuilder
When this flow emits true and it is the first one to do so, system bars will be colored according to the provided options.