Update front page text.
Update themes page header content.
Change primary color.
Extend layout selectors.
Update typographic component from the Wellspring project.
Remove useless styles from typographic component.
Remove typography section from the Sass settings.
Fix line height in lists.
Remove unused media queries.
Remove deprecated hgroup and use .subheader instead of h2.
Adjust grid settings.
Remove responsive base font sizes from the typography component.
Add basic responsive layout styles.