Styling of website

[dfalster]

Existing website has a dark theme that comes from styling option in pkgdown

This is specified in _pkgdown.yml:

https://github.com/traitecoevo/plant/blob/68805e314c4ee7a533ecafd1d123ca188123f1f2/_pkgdown.yml#L6

However, there's now a new version of bootstrap (5 compared to 3). When updating to 5, the theme switches to blue. how to we get back to dark?

This gives dark

template:
  bootstrap: 3
  bootswatch: cosmo

This gives blue

template:
  bootstrap: 5
  bootswatch: cosmo