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No physical input, visible OS presentation, screenshots or perceptual frame latency.", "Open includes root/widgets/icons/composition/raster/display/idletasks, but excludes dataset/figure construction. Redraw and actions include composition, raster and PhotoImage/canvas updates.", "Resize includes real 180ms debounce and 200ms wait callback. Pan includes one preview motion plus release/recomposition; no continuous-drag throughput benchmark.", "Process memory outside operation timing; peak is lifetime OS high-water mark including runtime/Python/data/native/Tk buffers, not stage-only/native-only memory.", "Pixel hashing uses small bands after timing/memory sampling; it can affect subsequent OS high-water marks. No profiling/tracemalloc/polling sampler.", "Natural Earth bases are generalized bundled data, not detailed municipal/urban data. Atlas thematic values and optional points are synthetic.", "Small local samples, no guaranteed speed/memory bound/statistical significance. 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