Entire

Restore per-agent brand colors (agentDisplayMap) as hex: base16 has fewer distinct hues than agents, so collapsing them made bar charts illegible. Documented as a deliberate exception alongside the mdrender chroma block.
Customize the huh form theme (uiform.Theme): magenta selection pointer and chosen options; titles and unselected options left unstyled so they inherit the terminal's default foreground.
Make "primary text" inherit the default foreground instead of pinning white (activity repo names, core table primary cell, mdrender body/heading text). A pinned slot (black "7"/white) can't invert and disappears on the opposite background; the default fg inverts like the terminal's own text.
Drop the palette.Primary alias (primary text should be unstyled, not pinned) and refresh stale "orange" comments to "accent/magenta".

Co-Authored-By: Claude Opus 4.8 (1M context) noreply@anthropic.com Entire-Checkpoint: fdbf89042374

Refine base16 theme: agent brand colors, huh form, inverting text