Problem/Motivation
When #3277053: Mark Claro as Stable is done, we can make Claro the default admin theme for Drupal core.
Proposed resolution
- Get Claro to stable: #3066007: Roadmap to stabilize Claro
- #3277053: Mark Claro as Stable
User interface changes
All Drupal installations will have Claro as the administration theme when they're installed.
Release notes snippet
Claro is the new default admin theme.