hugo-theme-introduction/assets/sass/style.sass

{{ $themeStyle := .Site.Params.themeStyle | default "light" }}
$fa-font-path: '{{ print $.Site.BaseURL "fonts/fontawesome-free/webfonts" }}'
$nunito-font-path: '{{ print $.Site.BaseURL "fonts/NunitoSans" }}'

{{ if eq $themeStyle "auto" }}
@import "fonts"
@import "light-variables"
@import "base-variables"
@import "bulma-import"
@import "fontawesome-import"
@import "base"
@import "light-style"

@media (prefers-color-scheme: dark)
    @import "fonts"
    @import "dark-variables"
    @import "base-variables"
    @import "bulma-import"
    @import "fontawesome-import"
    @import "base"
    @import "dark-style"

{{ else }}
@import "fonts"
@import "{{ $themeStyle }}-variables"
@import "base-variables"
@import "bulma-import"
@import "fontawesome-import"
@import "base"
@import "{{ $themeStyle }}-style"
{{ end }}