- Top bar: icons only (names kept for screen readers and as tooltips),
20% larger, twice the room between them; Archive 2 px smaller
- Subject wraps to two lines; subject-bar icons twice as far apart
- Reply / Translate / Actions on their own row with more room around
it; the ▼ for the full header can no longer be squeezed out, and the
full header spans the card's width
- Maskable app icons on the app's dark grey, so Android's launch screen
shows the logo without a white circle
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>