Portfolio group cards:
- Always show the secondary DRGX amount, including on 2-cell cards.
- Larger group icon + label (subtitle1); value stays subtitle1 for consistency.
- Minimum group width is now 8 cells (default width 8).
Price chart:
- Area fill is now a flat translucent fill matching the group-card sparklines
(dropped the vertical gradient + its primitive-API helper).
- Interval buttons sit near the top of the chart area (removed the empty gap
above them) with a comfortable gap below before the plot.
- The change badge's suffix now matches the SELECTED range (1H->1h, 1D->24h,
1W->7d, 1M->30d) instead of the raw data span (which read 23h / 6d).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>