#1573's five formatted block messages carried {}/{name} in every locale,
so the catalog never filled them and the UI printed the brace text; they
use the __ocs_fmt_0__ marker now. The Options collapse arrow, the library
up button and the folder picker are SVG icons instead of glyph text, and
the Details header drops its sort glyph. The contrast test follows the
cards to the weak surface pair and the palette test closes with
BLOCKSPALETTECLOSE, since BLOCKSPALETTE now only opens.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Raise accessible_accent default threshold from 2.0 to 3.0 (WCAG 1.4.11 UI state indicators)
- Raise EntryKind::Info command line history threshold from 3.0 to 4.5 (WCAG 1.4.3 normal text)
- Update themed_check_cell to verify >= 3.0:1 contrast across both weak popup panel and strong highlighted rows
- Replace fully-qualified accessible_accent_threshold calls inside closures with use imports
- Add comprehensive 9-suite theme accessibility contrast test suite covering all 22 themes across core surfaces