13.0.0

• Added: :where too all selectors, reducing specificity to nearly zero.
• Added: All elements now use background-repeat: no repeat.
• Removed: Overly specific select selector.
• Removed: Unnecessary focus outline fix previously used in Firefox.
• Removed: Unnecessary evergreen.css, forms.evergreen.css, and pages.css.
• Fixed: Prevent zero-width space from consuming space in Safari.
• Changed: Browser support from "last three versions" to "last two versions".

assets.css

• Added: video to sizing restrictions.

font/system-ui.css

• Added: Support for system-ui font family in Firefox.

font/ui-monospace.css

• Added: Support for ui-monospace font family in Chrome, Edge, and Firefox.