Am I missing something here? bootstrap.min.css does not include certain essentials that you add via "../_assets/css/custom.min.css"

[WebDragon]

If you JUST use the v5 theme's bootstrap.min.css as specified in the dropdown as I am used to doing with previous releases of bootswatch 4 and earlier, the resulting page does not look right, buttons all crammed together, incorrect spacing, weirdness everywhere.

https://jsfiddle.net/foc8pvk3/

but if you include that extraneous css include, everything looks fine. So why is this not part of the theme file ?

https://jsfiddle.net/foc8pvk3/1/

this seems to be true for all of the themes, so I am very curious as to the omission of these additional css rules in the actual theme's bootstrap.min.css file

[thomaspark]

The Bootstrap theme files will style the components, but you'll need to add your own styles to space them in the context of your site. The custom stylesheet does this for the Bootswatch docs site. But most sites won't have a bunch of buttons grouped together.