Web Development Chart: Planned vs Actual Gantt Timeline

Data visualization infographic titled "Gantt Chart Project" using COMPARISON COLUMNS as the dominant visual element, designed to visually emulate a web development project timeline contrast while remaining a clean data infographic. Show two grouped column series for each project phase comparing "Planned Duration (days)" versus "Actual Duration (days)" to highlight contrast clearly. Phases on the x-axis in English: "Discovery", "UI/UX Design", "Frontend Development", "Backend Development", "Testing", "Launch". Y-axis label in English: "Duration (days)" with sharp tick marks at 0, 5, 10, 15, 20, 25, 30. Use realistic illustrative values: Planned = 5, 7, 14, 12, 6, 3; Actual = 6, 10, 18, 15, 9, 2. Include a small secondary mini timeline strip beneath the chart labeled "Project Sequence" with colored phase blocks from week 1 to week 9 to evoke a gantt-style project context without changing the main chart archetype. Add clear legend in English: "Planned" and "Actual". Add 4 key insight callouts with headline numbers, short interpretation, and small icons: "+13 days" "Total schedule overrun versus plan" with alert icon; "Frontend: +4 days" "Largest delay among core build stages" with code icon; "Launch: -1 day" "Final release completed slightly faster" with rocket icon; "Week 4-7" "Development phases created the biggest contrast" with calendar icon. Add a small source/data-note strip in English: "Data note: Illustrative example for a web development project. Figures are illustrative, not sourced." Ensure no misleading axis truncation or scale manipulation, full zero baseline. Visual style: minimal flat, rainbow categorical palette with distinct colors per phase, soft off-white background, subtle gridlines, crisp typography, spacious editorial layout, contrast-focused storytelling mood. Include 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.