v1.2.0-rc.18

What's Changed

Fixes:

• fix: ErrorPreprocessor should not rewrite errors in same path #595
• fix(ui): Pass className prop on RepeaterItemContainer
• fix(ui): Actionable box initial render with createPortal()
• fix(admin): Add contentEditable={false} on placeholder wrapper in BlockEditor
• fix(ui): Set side dimension wrappers to display contents to allow layout flexibility
• fix(ui): White space padding from SectionTabs on legacy layout & Be…
• fix(ui): Fix sidebar color in legacy layout
• fix(ui): Handle multiple bars in Frame header

Minor features (fixes and simplifies previous implementation):

• fix(ui): Apply Spacer default gap
• fix(layout): Fix panel footer color reference (CSS)
• fix(ui): File drop zone alignment
• refactor(ui): Simplify icon size calculation
• feat(ui): Simplify handling of optical alignment of texts
• feat(layout): Alias multiple slot targets
• fix(layout): Slot fallback of SlotTarget now uses explicit fallback prop e.g. to create loading skeleton
• refactor(layout): Simplify handling of slot Target.aliases
• feat(layout): Allow to control display property of a slot target
• fix(ui): Skip immediate click after mouse enter on DevBar
• refactor(ui): Allow Text to be polymorphic component
• refactor(layout): Reuse common styles for panel header, body and footer
• fix(ui): Inherit props on Box content

Also:

• chore(admin-sandbox): Set base HTML color with <style> example that fixes flash of white background in dark mode during hot/live reload
• chore(admin-sandbox): Update example use of header and paragraphs
• refactor: Replace deep-equal with fast-deep-equal dependency
• feat(utilities): Add PolymorphicComponent utility type, this allowed to
• refactor(layout): Simplify types & Document layout panel types
• refactor(ui): Finer threshold of IntersectionObserver in SectionTabs

Full Changelog: v1.2.0-rc.17...v1.2.0-rc.18