# UX second pass — batched council review A running parking lot of small UX / interaction decisions deferred for a **batched [`/council`](../.claude/skills/council/SKILL.md) review**, rather than gating each one the moment it surfaces. Append quirks here as they come up; resolve them together in one pass, record the resolution into the contract (`docs/architecture/09`+`10` and the relevant `docs/spec/`), then delete the row. ## Open - **Border weight as identity — boxed fields vs Carbon's quieter defaults** (**priority: pick this up first, next session** — user-flagged 2026-06-12). Carbon's own defaults use far fewer boxes than we do: fields are filled with a bottom border only (`reference/carbon` → text-input `_text-input.scss`, `border-block-end` only), secondary buttons are a gray _fill_, tertiary is the only outlined button (`_button.scss` → `button-theme(transparent, $button-tertiary, …)`), and tiles separate by layer steps with full borders only behind an accessibility feature flag. Our fully-boxed fields/secondaries are a recorded divergence (arch 09 §2 + §4) and the box-discipline rules now contain the noise — the open question is whether to go further toward Carbon (bottom-border-only fields, filled secondary) or keep the boxed look as deliberate identity. An identity decision, not cleanup: it would repaint every field in the app. Council seats: Carbon (canon above), NN/g (affordance of boxed vs underlined inputs), a11y (3:1 non-text contrast for field boundaries either way). - **Two visible "Export" buttons** (`App.tsx` header — workspace export; `ChartExport.tsx` in the preview header — per-chart export). Same label, different scope, both visible at once. Candidate fix: rename one ("Export chart" / "Export workspace") or differentiate via grouping. - **"LATER" facet placeholders in Chart Builder shelves** (`ChartBuilderModal.module.css` → `.facetSlot`/`.facetTag`). Internal roadmap language shipped to users. Either hide the affordance until faceting works or write user-facing copy. - **Default snippet names are timestamps** ("Snippet 2026-06-10 18:04:37") — the library reads like a downloads folder next to builder-generated names ("Bar chart of count by Ship Mode"). Candidate: derive a content-based name from the spec (mark + encoded fields) when the user never renames. - **Fit-mode tab labels** ("Original / Width / Height / Full", `LivePreview.tsx`) are terse for a first-time user; tooltips likely suffice. - **Donate is the most saturated element on screen** (header soft-accent wash) — visually outranks Publish/Build Chart. Decide whether intentional. - **Left rail affordance** (`PaneToggleStrip.tsx`): three unlabeled glyphs + a tall empty strip; pane toggles aren't discoverable without hovering. - **Pane toggle pressed state = hover state** (`PaneToggleStrip.module.css`). The pressed chip is a `--layer-02` fill — the same fill the strip's IconButtons use on hover — so hovering an off toggle looks identical to an on toggle at rest. (The pressed chip's `--border-strong` border used to disambiguate; it was dropped in the box-discipline pass.) Candidate cues: a filled/accent glyph, an inset edge marker, or restoring a border for the on state only. - **Dataset detail schema density** (`DatasetsModal.tsx`): one field per row makes a 25-column dataset a long scroll before the preview table; a denser two-column field list would fit overview + schema + preview on one screen. - **Chart theme picker placement & header crowding** (`LivePreview.tsx` — ChartThemeControl). The picker sits in the preview header because nesting a SelectControl inside the PreviewSettings popover is impossible today (one-open-popover registry: the select would close/unmount its own parent). Header now holds Fit + theme + export + gear; at narrow pane widths the long trigger labels ("FiveThirtyEight", "Urban Institute") may crowd it. Council questions: does the picker deserve header prominence (the "transform your chart" showcase) or settings-cluster placement (a persistent global pref); should the popover registry learn nesting; should the preset block also carry a group _heading_ (a divider now bounds it — 2026-06-12, user-decided; `SelectControl` `dividerBefore`)? - **"Edit themes…" action row inside the value picker** (`LivePreview.tsx` — ChartThemeControl). A non-value action lives inside a single-select disclosure (the VS Code theme-picker pattern), placed after the custom-themes block and before the preset roster (first-use feedback: at the very bottom it was invisible without scrolling). The ours-vs-presets divider (2026-06-12) now bounds it below; remaining council questions: should the action row itself be styled distinctly from the value rows; is a mid-list row that opens a modal instead of selecting surprising to AT users? - **Theme Builder config editor is a plain textarea** (`ThemeBuilderModal.tsx`). Monaco (with the Vega-Lite config schema for completions) would match the main editor but is heavy inside a modal and untested in that mounting. Revisit whether the builder deserves a Monaco instance, and whether the gallery's canvas charts need text alternatives beyond the per-card captions. ## Deferred (not design debts, revisit on demand) - **Drag-and-drop field assignment** — chips are click/keyboard-first by design; drag would be a progressive enhancement on top of the chooser model, not a replacement. Revisit if real usage asks for it (likely alongside Phase 4 faceting, where drag-to-shelf reads most naturally).