* Implement toggle button
* Dark mode mixins
* Dark mode color design
* Disable dark mode for prints
* Initial dark mode design
* Fix light mode mixin
* Disable dark mode on print style
* Move dark mode color scheme below the default style to allow referencing
* Fix dropdown
* Fix device-based dark mode
* Dark mode index page design
* Responsive auxiliary nav with dark mode toggle
* Remove box shadow when on smaller displays
* Prevent default on toggle click
* Move attribution/licensing to README.md
* Fix header padding on index page
* Background color transition animation
* Remove margin on index when on mobile displays
* Remove neon border when on mobile
* Fix post-header margin on mobile
* Lighten card headers in dark mode
