Switch the Bootstrap colour mode from the server — set_bs_color

Sets the Bootstrap 5.3 colour mode (data-bs-theme) on the document root, switching every component between light and dark. Set the initial mode with the color_mode argument of bs_page().

Usage

set_bs_color_mode(mode, session = shiny::getDefaultReactiveDomain())

Arguments

mode: "light", "dark", or "auto" to follow the operating system.
session: The Shiny session.

Value

Invisibly NULL, called for its side effect.

Details

A choice is remembered in the browser's localStorage, so it survives a reload; "auto" forgets it and follows the operating system again. The mode actually in force is reported as input$bootstrict_color_mode, which is "light" or "dark" even when the preference is "auto".

Examples

if (interactive()) set_bs_color_mode("dark")