```scss
@import "bootstrap/scss/functions";
@import "bootstrap/scss/variables";
+@import "bootstrap/scss/variables-dark";
@import "bootstrap/scss/maps";
@import "bootstrap/scss/mixins";
@import "bootstrap/scss/utilities";
```scss
@import "bootstrap/scss/functions";
@import "bootstrap/scss/variables";
+@import "bootstrap/scss/variables-dark";
@import "bootstrap/scss/maps";
@import "bootstrap/scss/mixins";
@import "bootstrap/scss/utilities";
```scss
@import "bootstrap/scss/functions";
@import "bootstrap/scss/variables";
+@import "bootstrap/scss/variables-dark";
@import "bootstrap/scss/maps";
@import "bootstrap/scss/mixins";
@import "bootstrap/scss/utilities";
```scss
@import "bootstrap/scss/functions";
@import "bootstrap/scss/variables";
+@import "bootstrap/scss/variables-dark";
@import "bootstrap/scss/maps";
@import "bootstrap/scss/mixins";
@import "bootstrap/scss/utilities";
```scss
@import "bootstrap/scss/functions";
@import "bootstrap/scss/variables";
+@import "bootstrap/scss/variables-dark";
@import "bootstrap/scss/maps";
@import "bootstrap/scss/mixins";
@import "bootstrap/scss/utilities";
```scss
@import "bootstrap/scss/functions";
@import "bootstrap/scss/variables";
+@import "bootstrap/scss/variables-dark";
@import "bootstrap/scss/maps";
@import "bootstrap/scss/mixins";
@import "bootstrap/scss/utilities";
```scss
@import "bootstrap/scss/functions";
@import "bootstrap/scss/variables";
+@import "bootstrap/scss/variables-dark";
@import "bootstrap/scss/maps";
@import "bootstrap/scss/mixins";
@import "bootstrap/scss/utilities";