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The labelled icon-badge tiles were inconsistent: some used a same-hue light tile + colored glyph (e.g. the Settings 2FA row: success.light tile + success.main glyph — low contrast, the reported "badly visible" icon), and the solid-tile ones used the bright .main fill in dark mode without darkening, so a white glyph on bright green/amber was low-contrast too (DashProfile's success badge was ~1.9:1). Add a single `iconBadgeSx(color)` helper (theme.ts): solid `<color>.main` fill + white glyph, darkened in dark mode (FILLED_DARK_BG) so white stays legible; `default` = neutral grey. Applied to every badge so they can't drift: StatCard, DashActivityFeed, DashProfile (2FA badge), Dashboard (2FA banner icon), AttendanceHistory (month tile), and the Settings 2FA row tile (now solid green when required / grey when optional + white lock, instead of the low-contrast light-green tile). Also switched DashProfile's backup-codes warning callout from warning.light to a subtle warning wash so its amber text stays readable in dark mode. tsc -b --noEmit, npm run build, vitest 152/152 all clean. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>