Narrative data heatmap infographic with comparison columns

Data visualization infographic titled "Heatmap Example" using COMPARISON COLUMNS as the dominant visual element to clearly show contrast, with a heatmap-inspired matrix as a secondary supporting panel. Main chart: side-by-side comparison columns for 6 categories labeled in English: "North", "South", "East", "West", "Central", "Coastal" with two series in English: "Low intensity" and "High intensity". Use realistic illustrative values to emphasize contrast: North 22 vs 78, South 35 vs 65, East 18 vs 82, West 48 vs 52, Central 27 vs 73, Coastal 55 vs 45. Include a clear vertical axis labeled "Index value" from 0 to 100 with sharp tick marks every 10, no truncated axis, and a horizontal axis labeled "Region". Add a secondary compact heatmap grid beneath or beside the columns, 6 regions by 4 periods labeled "Q1", "Q2", "Q3", "Q4", with monochrome shading from light gray to near-black, values illustrative and matching the contrast narrative. Include a legend labeled "Lower value" to "Higher value" in English. Add 4 key insight callouts with small icons: 1) headline number "82" with interpretation "East reaches the darkest high-intensity level" and a small flame icon, 2) headline number "56 pt gap" with interpretation "North shows one of the widest internal contrasts" and a small split-circle icon, 3) headline number "10 pt gap" with interpretation "West is nearly balanced across both states" and a small balance icon, 4) headline number "55" with interpretation "Coastal is the only region where low intensity leads" and a small wave icon. Add a small source/data-note strip at the bottom in English reading "Data note: Illustrative example for layout and storytelling. Figures are illustrative, not sourced observations." Visual style: editorial data journalism illustration, FT / Bloomberg-grade chart aesthetics, vector-clean infographic layout. Monochrome ink palette only: ivory background, charcoal text, black lines, slate and gray fills with one deep-ink accent for emphasis. Overall mood: analytical, restrained, high-contrast, precise, newsroom-quality. Ensure sharp axis labels, crisp gridlines, clean legend, compact annotations, and uncluttered spacing. 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.