feat(d3): implement venn-labeled-items (#9506)

## Implementation: `venn-labeled-items` - javascript/d3

Implements the **javascript/d3** version of `venn-labeled-items`.

**File:** `plots/venn-labeled-items/implementations/javascript/d3.js`

**Parent Issue:** #5364

---
:robot: *[impl-generate
workflow](https://github.com/MarkusNeusinger/anyplot/actions/runs/28167148901)*

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: claude[bot] <41898282+claude[bot]@users.noreply.github.com>
Co-authored-by: Markus Neusinger <2921697+MarkusNeusinger@users.noreply.github.com>

Author: github-actions[bot]

plots/venn-labeled-items/implementations/javascript/d3.js

@@ -0,0 +1,135 @@
+// anyplot.ai
+// venn-labeled-items: Chartgeist-Style Venn Diagram with Labeled Items
+// Library: d3 7.9.0 | JavaScript 22.23.0
+// Quality: 87/100 | Created: 2026-06-25
+//# anyplot-orientation: square
+
+const t = window.ANYPLOT_TOKENS;
+const { width, height } = window.ANYPLOT_SIZE;
+const THEME = window.ANYPLOT_THEME || "light";
+const inkMuted = THEME === "dark" ? "#A8A79F" : "#6B6A63";
+
+// --- Data ---
+const circleData = [
+  { name: "Overhyped",       cx: 600, cy: 480, r: 270 },
+  { name: "Actually Useful", cx: 738, cy: 718, r: 270 },
+  { name: "Secretly Loved",  cx: 462, cy: 718, r: 270 },
+];
+
+// D3 ordinal scale maps category names to Imprint palette in canonical order
+const colorScale = d3.scaleOrdinal()
+  .domain(circleData.map(d => d.name))
+  .range(t.palette.slice(0, 3));
+
+// Centroid of each Venn zone for label placement
+const ZONE_CENTROIDS = {
+  A:       { x: 600, y: 314 },
+  B:       { x: 878, y: 800 },
+  C:       { x: 322, y: 800 },
+  AB:      { x: 730, y: 566 },
+  AC:      { x: 470, y: 566 },
+  BC:      { x: 600, y: 840 },
+  ABC:     { x: 600, y: 638 },
+  outside: { x: 975, y: 360 },
+};
+
+const items = [
+  { label: "NFTs",              zone: "A"       },
+  { label: "Metaverse",         zone: "A"       },
+  { label: "Segway",            zone: "A"       },
+  { label: "Google Glass",      zone: "A"       },
+  { label: "Wikipedia",         zone: "B"       },
+  { label: "GPS Navigation",    zone: "B"       },
+  { label: "Cloud Backup",      zone: "B"       },
+  { label: "Password Managers", zone: "B"       },
+  { label: "Spreadsheets",      zone: "C"       },
+  { label: "Fax Machines",      zone: "C"       },
+  { label: "Cable TV",          zone: "C"       },
+  { label: "ChatGPT",           zone: "AB"      },
+  { label: "Electric Scooters", zone: "AB"      },
+  { label: "TikTok",            zone: "AC"      },
+  { label: "Gamification",      zone: "AC"      },
+  { label: "Dark Mode",         zone: "BC"      },
+  { label: "RSS Feeds",         zone: "BC"      },
+  { label: "Sourdough",         zone: "ABC"     },
+  { label: "Zoom",              zone: "ABC"     },
+  { label: "Landlines",         zone: "outside" },
+];
+
+// Use d3.group to partition items by zone, then compute vertical stacking positions
+const SPACING = 24;
+const itemsByZone = d3.group(items, d => d.zone);
+
+itemsByZone.forEach((zoneItems, zone) => {
+  const { x: zx, y: zy } = ZONE_CENTROIDS[zone];
+  const totalH = (zoneItems.length - 1) * SPACING;
+  zoneItems.forEach((item, i) => {
+    item.x = zx;
+    item.y = zy - totalH / 2 + i * SPACING;
+  });
+});
+
+// --- SVG ---
+const svg = d3.select("#container").append("svg")
+  .attr("width", width)
+  .attr("height", height);
+
+// --- Circles (data join, semi-transparent fills, colored strokes) ---
+svg.selectAll("circle.venn-circle").data(circleData).join("circle")
+  .attr("class", "venn-circle")
+  .attr("cx", d => d.cx).attr("cy", d => d.cy).attr("r", d => d.r)
+  .attr("fill", d => colorScale(d.name)).attr("fill-opacity", 0.12)
+  .attr("stroke", d => colorScale(d.name))
+  .attr("stroke-width", 2.5).attr("stroke-opacity", 0.65);
+
+// --- Category labels (data join per circle, editorial serif) ---
+const catFont = "Georgia, 'Times New Roman', serif";
+
+const catLabelDefs = [
+  { name: "Overhyped",       lines: ["Overhyped"],          x: circleData[0].cx,                        y: circleData[0].cy - circleData[0].r - 20, anchor: "middle" },
+  { name: "Actually Useful", lines: ["Actually", "Useful"], x: circleData[1].cx + circleData[1].r + 26, y: circleData[1].cy - 13,                  anchor: "start"  },
+  { name: "Secretly Loved",  lines: ["Secretly", "Loved"],  x: circleData[2].cx - circleData[2].r - 26, y: circleData[2].cy - 13,                  anchor: "end"    },
+];
+
+catLabelDefs.forEach(def => {
+  const catG = svg.append("g");
+  catG.selectAll("text").data(def.lines).join("text")
+    .attr("x", def.x)
+    .attr("y", (_, i) => def.y + i * 28)
+    .attr("text-anchor", def.anchor)
+    .attr("fill", colorScale(def.name))
+    .style("font-size", "20px").style("font-weight", "700")
+    .style("font-family", catFont)
+    .text(d => d);
+});
+
+// --- "outside all circles" annotation ---
+const outsideItems = items.filter(d => d.zone === "outside");
+if (outsideItems.length) {
+  svg.append("text")
+    .attr("x", ZONE_CENTROIDS.outside.x)
+    .attr("y", d3.min(outsideItems, d => d.y) - 22)
+    .attr("text-anchor", "middle").attr("fill", inkMuted)
+    .style("font-size", "14px").style("font-style", "italic")
+    .text("outside all circles");
+}
+
+// --- Items (data join over all items, positions from d3.group stacking) ---
+svg.selectAll("text.venn-item").data(items).join("text")
+  .attr("class", "venn-item")
+  .attr("x", d => d.x)
+  .attr("y", d => d.y)
+  .attr("text-anchor", "middle")
+  .attr("dominant-baseline", "middle")
+  .attr("fill", d => d.zone === "outside" ? inkMuted : t.inkSoft)
+  .style("font-size", "14px")
+  .style("font-style", d => d.zone === "outside" ? "italic" : "normal")
+  .style("font-family", "system-ui, -apple-system, sans-serif")
+  .text(d => d.label);
+
+// --- Title ---
+svg.append("text")
+  .attr("x", width / 2).attr("y", 46)
+  .attr("text-anchor", "middle").attr("fill", t.ink)
+  .style("font-size", "22px").style("font-weight", "600")
+  .text("venn-labeled-items · javascript · d3 · anyplot.ai");

plots/venn-labeled-items/metadata/javascript/d3.yaml

@@ -0,0 +1,252 @@
+library: d3
+language: javascript
+specification_id: venn-labeled-items
+created: '2026-06-25T11:44:36Z'
+updated: '2026-06-25T12:15:23Z'
+generated_by: claude-sonnet
+workflow_run: 28167148901
+issue: 5364
+language_version: 22.23.0
+library_version: 7.9.0
+preview_url_light: https://storage.googleapis.com/anyplot-images/plots/venn-labeled-items/javascript/d3/plot-light.png
+preview_url_dark: https://storage.googleapis.com/anyplot-images/plots/venn-labeled-items/javascript/d3/plot-dark.png
+preview_html_light: https://storage.googleapis.com/anyplot-images/plots/venn-labeled-items/javascript/d3/plot-light.html
+preview_html_dark: https://storage.googleapis.com/anyplot-images/plots/venn-labeled-items/javascript/d3/plot-dark.html
+quality_score: 87
+review:
+  strengths:
+  - 'Perfect spec compliance: all seven zones plus outside populated, semi-transparent
+    fills, category labels outside circles in their correct colors'
+  - 'Excellent data quality: real witty editorial items with believable zone assignments
+    that fit the WIRED Chartgeist aesthetic'
+  - Clean idiomatic D3 using d3.group data joins and ANYPLOT_TOKENS/ANYPLOT_SIZE correctly
+  - 'Full theme adaptation: both light and dark renders pass readability with no dark-on-dark
+    failures'
+  - Serif category labels (Georgia) reinforce the editorial magazine aesthetic called
+    for in the spec
+  weaknesses:
+  - Item labels at 14px are at the lower end for a 2400 px canvas — bumping to 15-16px
+    would improve mobile readability without crowding zones
+  - 'No visual hierarchy among items: all render identically (same color, size) —
+    consider slightly larger or bolder text for ABC intersection items (Sourdough,
+    Zoom) to make the triple-overlap punchline pop'
+  - Optional editorial subtitle absent — adding a light subtitle like 'A Cultural
+    Status Report' in smaller italic serif would elevate the editorial feel
+  - Zone centroids for outside items (x=975) sit close to the right canvas edge; a
+    small left-shift would provide more breathing room
+  image_description: |-
+    Light render (plot-light.png):
+      Background: Warm off-white (#FAF8F1) — correct theme surface
+      Chrome: Title "venn-labeled-items · javascript · d3 · anyplot.ai" at top in dark ink (22px, weight 600) — fully readable. Category labels in bold Georgia serif in their respective palette colors (green/lavender/blue) — clearly visible. No axis labels or tick labels (not applicable for Venn).
+      Data: Three overlapping circles — green (#009E73) for Overhyped, lavender (#C475FD) for Actually Useful, blue (#4467A3) for Secretly Loved. 12% opacity fills show overlapping regions. Item labels in 14px sans-serif using inkSoft token. Outside items in muted italic.
+      Legibility verdict: PASS — all text readable against light background; no light-on-light issues
+
+    Dark render (plot-dark.png):
+      Background: Warm near-black (#1A1A17) — correct theme surface
+      Chrome: Title and item labels switch to light-colored text (inkSoft token — light gray) — clearly readable against the dark surface. Category labels remain in the same palette colors (green/lavender/blue), all readable against dark background. No dark-on-dark failures detected.
+      Data: Data colors are identical to the light render — same green, lavender, and blue circle strokes and fills. The 12% opacity fills create subtle pools against the near-black background, maintaining overlap visibility.
+      Legibility verdict: PASS — all text readable; chrome correctly adapts to dark theme
+  criteria_checklist:
+    visual_quality:
+      score: 28
+      max: 30
+      items:
+      - id: VQ-01
+        name: Text Legibility
+        score: 7
+        max: 8
+        passed: true
+        comment: 'All font sizes explicitly set (title 22px, category labels 20px
+          bold, items 14px). Readable in both themes. Minor: item labels at 14px are
+          at the lower bound for 2400px canvas.'
+      - id: VQ-02
+        name: No Overlap
+        score: 6
+        max: 6
+        passed: true
+        comment: Vertical stacking with 24px spacing prevents any text collision across
+          all seven zones plus outside.
+      - id: VQ-03
+        name: Element Visibility
+        score: 6
+        max: 6
+        passed: true
+        comment: Circle strokes clearly delineate rings; 12% fills appropriately transparent;
+          text-only items suit the editorial spec.
+      - id: VQ-04
+        name: Color Accessibility
+        score: 2
+        max: 2
+        passed: true
+        comment: Imprint palette is CVD-safe; semi-transparent fills let background
+          show through.
+      - id: VQ-05
+        name: Layout & Canvas
+        score: 3
+        max: 4
+        passed: true
+        comment: 'Well-centered diagram filling ~70% of canvas. Minor: upper-right
+          outside zone leaves some empty space.'
+      - id: VQ-06
+        name: Axis Labels & Title
+        score: 2
+        max: 2
+        passed: true
+        comment: No axes (correct for Venn); title in required format; category names
+          as clear zone labels.
+      - id: VQ-07
+        name: Palette Compliance
+        score: 2
+        max: 2
+        passed: true
+        comment: 'First circle #009E73; positions 2-3 canonical Imprint order; background
+          #FAF8F1 light / #1A1A17 dark; chrome adapts correctly.'
+    design_excellence:
+      score: 12
+      max: 20
+      items:
+      - id: DE-01
+        name: Aesthetic Sophistication
+        score: 5
+        max: 8
+        passed: true
+        comment: 'Intentional editorial choices: bold Georgia serif for category labels,
+          italic for outside items, color-matched labels. Above defaults but not publication-ready.'
+      - id: DE-02
+        name: Visual Refinement
+        score: 4
+        max: 6
+        passed: true
+        comment: Gridless, no spines, generous whitespace, semi-transparent fills
+          with matching strokes. Good refinement.
+      - id: DE-03
+        name: Data Storytelling
+        score: 3
+        max: 6
+        passed: false
+        comment: Good editorial item choices but no visual hierarchy — all items render
+          identically, missing opportunity to emphasize the ABC triple-overlap punchline.
+    spec_compliance:
+      score: 15
+      max: 15
+      items:
+      - id: SC-01
+        name: Plot Type
+        score: 5
+        max: 5
+        passed: true
+        comment: Correct three-circle Venn with symmetric layout, equally-sized circles,
+          clear overlaps.
+      - id: SC-02
+        name: Required Features
+        score: 4
+        max: 4
+        passed: true
+        comment: Semi-transparent fills, category names outside circles, items as
+          labeled text, all 7 zones + outside populated, gridless.
+      - id: SC-03
+        name: Data Mapping
+        score: 3
+        max: 3
+        passed: true
+        comment: All items placed in correct zones; outside items separated from circles.
+      - id: SC-04
+        name: Title & Legend
+        score: 3
+        max: 3
+        passed: true
+        comment: Title exactly 'venn-labeled-items · javascript · d3 · anyplot.ai'.
+          No series legend needed; category labels fulfill the role.
+    data_quality:
+      score: 15
+      max: 15
+      items:
+      - id: DQ-01
+        name: Feature Coverage
+        score: 6
+        max: 6
+        passed: true
+        comment: All 7 zones plus outside populated; good distribution across zone
+          types.
+      - id: DQ-02
+        name: Realistic Context
+        score: 5
+        max: 5
+        passed: true
+        comment: Real pop-culture items with believable editorial judgment; matches
+          WIRED Chartgeist aesthetic.
+      - id: DQ-03
+        name: Appropriate Scale
+        score: 4
+        max: 4
+        passed: true
+        comment: Zone assignments are plausible and witty; NFTs/Metaverse as Overhyped,
+          GPS/Wikipedia as Actually Useful, Sourdough in all three.
+    code_quality:
+      score: 10
+      max: 10
+      items:
+      - id: CQ-01
+        name: KISS Structure
+        score: 3
+        max: 3
+        passed: true
+        comment: Data → SVG → circles → category labels → outside annotation → items
+          → title. No functions or classes.
+      - id: CQ-02
+        name: Reproducibility
+        score: 2
+        max: 2
+        passed: true
+        comment: All data hardcoded; fully deterministic.
+      - id: CQ-03
+        name: Clean Imports
+        score: 2
+        max: 2
+        passed: true
+        comment: d3 is the single global; no unused imports.
+      - id: CQ-04
+        name: Code Elegance
+        score: 2
+        max: 2
+        passed: true
+        comment: Uses d3.group for zone stacking, data joins throughout; clean and
+          idiomatic.
+      - id: CQ-05
+        name: Output & API
+        score: 1
+        max: 1
+        passed: true
+        comment: D3 interactive library; harness emits plot-{theme}.png + plot-{theme}.html
+          correctly.
+    library_mastery:
+      score: 7
+      max: 10
+      items:
+      - id: LM-01
+        name: Idiomatic Usage
+        score: 4
+        max: 5
+        passed: true
+        comment: Good use of d3.group (D3 v6+ API), d3.scaleOrdinal, .data().join()
+          data-join, d3.min, correct ANYPLOT_TOKENS/ANYPLOT_SIZE usage.
+      - id: LM-02
+        name: Distinctive Features
+        score: 3
+        max: 5
+        passed: true
+        comment: d3.group for grouping/stacking is D3-idiomatic, but Venn geometry
+          is entirely manually positioned rather than algorithmically derived using
+          D3 math utilities.
+  verdict: APPROVED
+impl_tags:
+  dependencies: []
+  techniques:
+  - annotations
+  patterns:
+  - data-generation
+  - iteration-over-groups
+  dataprep: []
+  styling:
+  - alpha-blending
+  - minimal-chrome