Postgresql Visualizer Bubble Chart on Income Inequality

Data visualization infographic titled "Bubble Chart Example" using a BUBBLE CHART as the dominant visual element to show inequality. Editorial data journalism illustration, FT / Bloomberg-grade chart aesthetics, vector-clean infographic layout, with Reuters / Economist editorial styling in a dark mode neon palette: charcoal-black background, neon cyan gridlines, magenta and lime data bubbles, soft amber highlight accents, crisp white typography. Build a large central bubble chart with sharp axis labels and tick marks in English. X-axis label: "Access to Opportunity Index" with ticks from 0 to 100 at 10-point intervals. Y-axis label: "Annual Income (USD, thousands)" with ticks from 0 to 200 at 20-point intervals. Bubble size legend in English labeled "Population Size (illustrative)" with three reference circles. Plot realistic illustrative groups to emphasize inequality, with labels in English placed cleanly beside bubbles: "Top 10%" at x=88, y=180, large bubble; "Upper Middle" at x=72, y=95, medium-large bubble; "Middle 40%" at x=55, y=48, largest bubble; "Lower Middle" at x=38, y=22, medium bubble; "Bottom 20%" at x=18, y=8, medium-small bubble. Add subtle dotted guide lines and a diagonal inequality gradient from lower-left to upper-right. Ensure scales are full and honest, no truncation, no misleading axis manipulation. Add 4 key insight callouts around the chart, each with a small icon and concise English text: 1) headline number "22x" with interpretation "Top group income is about 22 times the bottom group in this illustrative example" and an upward arrow icon. 2) headline number "70 pts" with interpretation "Opportunity access gap between top and bottom groups is wide" and a split-ladder icon. 3) headline number "40%" with interpretation "The middle segment holds the largest population bubble but far lower income than the top" and a people icon. 4) headline number "Clustered Low" with interpretation "Several groups concentrate in the low-opportunity, low-income zone" and a warning/inequality icon. Add a compact legend in English: "Higher income", "Higher opportunity", "Bubble size = population". Include a small search-intent themed accent motif inspired by database visualization UI, but with no on-image text for that motif. Add a bottom strip in English reading: "Data note: Illustrative example only. Figures are not sourced and are shown to demonstrate bubble chart design and inequality storytelling." Maintain clean spacing, sharp labels, balanced annotations, high contrast, polished newsroom infographic mood. 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.