bs-theme-preset-builtin.md
In bslib: Custom 'Bootstrap' 'Sass' Themes for 'shiny' and 'rmarkdown'

builtin_bundle(): errors for unknown preset names

Code
  builtin_bundle("not-a-preset", version = "5")
Condition
  Error in `validate_builtin_preset_name()`:
  ! 'not-a-preset' is not a valid built-in theme preset provided by {bslib}.
  i Available Bootstrap 5 themes are: 'shiny'

Code
  builtin_bundle("not-a-preset", version = "4")
Condition
  Error in `validate_builtin_preset_name()`:
  ! 'not-a-preset' is not a valid built-in theme preset provided by {bslib}.
  i No built-in theme presets are available for this version of Bootstrap.