Theming Shiny Apps with bslib

Customize Shiny app appearance using bslib's Bootstrap 5 theming system. From quick Bootswatch themes to advanced Sass customization and dynamic color mode switching.

Quick Start

"shiny" preset (recommended starting point):

page_sidebar(
  theme = bs_theme(),  # "shiny" preset by default — polished, not plain Bootstrap
  ...
)