bslib 0.9.0

Breaking changes

• The navbar-related style options of page_navbar() and navset_bar() have been consolidated into a single navbar_options argument that pairs with a new navbar_options() helper. Using the direct position, bg, inverse, collapsible, and underline arguments will continue to work with a deprecation message. (#1141)

  Related to the above change, navset_bar() now defaults to using underline = TRUE so that both page_navbar() and navset_bar() use the same set of default navbar_options().

  In navbar_options(), inverse is replaced by theme, which takes values "light" (dark text on a light background), "dark" (light text on a dark background), or "auto" (follow page settings, the default). This change affects that default navbar foreground and background colors for Bootswatch preset themes with Bootstrap 5. Detailed instructions for customizing the navbar appearance, especially for Bootswatch themes, can be found in ?navbar_options. (#1146)

New features

• bslib now supports unified theming with brand.yml. brand.yml lets you theme your Shiny apps, Quarto documents and more with a single, portable YAML file. Learn more in the new Unified theming with brand.yml article. (#1148)

Improvements and bug fixes

• navset_card_pills(), navset_card_underline(), navset_card_tabs() fixed to now respect header/footer arguments (@tanho63, #1024)

• Fixed a bug in bs_themer() (and bs_theme_preview()) that caused it to stop applying changes if a Sass variable was NULL. (@meztez, #1112)

• Optimized for better performance the internal functions that compile Sass to call the color-contrast() algorithm. (#1140)

• input_switch() and input_dark_mode() can be included in Shiny's bookmarking feature. (#1166)

• Fixed an issue with the Shiny preset (bs_theme(5, "shiny")) that caused a floating underling to appear when a nav_panel_hidden() was used and active. (#1170)

• bslib now uses navbar markup with Bootstrap 5 that's closer to the expected markup for Bootstrap. We still include the navbar-default or navbar-inverse classes on the <nav> element, for backwards compatibility, but in apps that use Bootstrap 5 these classes have no styles. (#1146)

• The following functions are no longer marked "experimental": accordion(), breakpoints(), card(), input_dark_mode(), input_switch(), layout_columns(), layout_column_wrap(), page_fillable(), page_sidebar(), layout_sidebar(), sidebar(), popover(), tooltip() and value_box().