[Design] Template instance design - Foundations

[aboydnw]

Context

In the USWDS context, an example full-page layout would be needed to evaluate structural things like site navigation, use of grids, responsiveness, etc.

This is part of a series of tickets to provide guidance to our internal team and, eventually, instance owners. This ticket focuses on design foundations like color palettes and others.

Acceptance Criteria

• Foundational design elements are defined in Figma and agreed upon with engineers

Foundational design elements include:

• Color palettes
• Typography
• Spacing, radius, and grids
• Effect styles
• Icons
• Logos