Visualising Numbers in a Dark Trend Line Infographic

Data visualization infographic titled "Streamgraph Topic Over Time" featuring a TREND LINE (over time) as the dominant visual element, designed to emphasize a surprise outlier. Show a dark dashboard layout with FT pink and navy palette: deep navy background, muted gridlines, bright FT pink primary line, lighter pink highlight accents, soft cyan secondary annotation accents, high contrast editorial look. Include a large central time-series chart with sharp axis labels and tick marks in English. X-axis label: "Month" with ticks "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec". Y-axis label: "Value (illustrative)" with full baseline starting at 0 and evenly spaced ticks at 0, 20, 40, 60, 80, 100, 120, no truncation or misleading scale manipulation. Plot one main line labeled in legend as "Streamgraph topic" with realistic illustrative values: Jan 18, Feb 22, Mar 24, Apr 27, May 31, Jun 35, Jul 38, Aug 41, Sep 44, Oct 96, Nov 52, Dec 49. Make the October spike the clear visual outlier with a glowing marker, subtle halo, and annotation leader line. Add 4 key insight callouts around the chart, each with a headline number, short interpretation in English, and a small icon: 1) "96" — "October spike stands far above the yearly trend" with alert icon; 2) "+118%" — "Peak month vs September, indicating a sudden surge" with upward arrow icon; 3) "49" — "December settles near the pre-spike range" with gauge icon; 4) "31" — "Typical mid-year level before the outlier event" with calendar icon. Add a compact side mini-panel or footer stat strip with secondary metrics in English: "Year average: 39.8", "Pre-spike average (Jan–Sep): 31.1", "Peak share of annual total: 20%", all marked as illustrative. Include subtle dashboard UI framing, clean legend, thin grid, precise ticks, and refined annotation lines. Add a small SOURCE / DATA-NOTE strip in English at the bottom: "Data note: Illustrative example. Values are plausible sample figures for visualization only." Include the phrases "editorial data journalism illustration, FT / Bloomberg-grade chart aesthetics, vector-clean infographic layout". All text MUST be written in English (array). Every heading, label, caption, legend and metric name in the image must be in English — not English. Spell each English word correctly using English characters and diacritics. Numbers stay as digits, no fake authoritative sources cited, no watermarks Numbers labeled "illustrative" unless the user supplied specific sourced data. No fake authoritative sources cited (do not invent "Source: Reuters 2025" — use "Illustrative example" instead). No misleading axis truncation or scale manipulation.