- Removed several now unused Sass variables.
- Checkboxes now have a wrapping element and an SVG in the DOM for checked and indeterminate states. Radios and switches do not.
- Revamped layout for checks, radios, and switches with labels (and descriptions). We now have custom elements for layout that include basic flexbox styling.
- - @mdo-do: Decide on fate of `.form-check-reverse`.
+ - @mdo-do: Decide on fate of `.form-check-reverse` and `.btn-check`
- **Consolidate `.form-select` into `.form-control`.**
- Removed `.form-select`—use `.form-control` on `<select>` elements now. Too much abstraction and duplication at the same time.
- Adds new CSS variables on `.form-control` for easier customization without Sass compilation.