High contrast mode

[sarayourfriend]

Problem

We are working to add Dark Mode in Openverse: #3592

In discussions reviewing and bug-checking Dark Mode implementation and designs, we've decided it would be a good idea to also develop an additional high contrast versions of Openverse light and dark modes, to be enabled by users, or by default when the user agent reports a preference for high contrast UIs.

Refer to the last section of this comment and the follow-up from @fcoveram for more context: #4783 (reply in thread)

Description

This is a follow-up issue to the dark mode project and is out of scope of the project. Therefore, it does not affect the status of that project.

The dark mode project lays a solid foundation for implementing a high-contrast variation of both Openverse visual designs.

This issue requires design and implementation:

• Design
  • The development of high contrast versions of Openverse light and dark mode designs
  • A design for user interface control of the option
• Implementation
  • Add the color variables and root-element class context for high contrast
  • Add the controls for high-contrast variations