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Reduce SVG file sizes by: - Moving font-family to a CSS <style> block instead of per-element attributes - Using fill/stroke attributes instead of verbose style="..." syntax - Merging consecutive same-colour <line> segments into <polyline> elements - Run-length merging adjacent same-colour <rect> elements (benefits tile heatmap) - Increasing line stroke-width to 2 for better visibility SVG generation changes are in SVGGenerator.java (attribute format). Post-processing optimisations are in SVGImageSaver.java (polyline/rect merging). PNG rendering is unaffected as it uses Java2D directly. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Optimise SVG plots, bump SVG line widths
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Merge optimisation fixes from @ewels and change the launch script to make SVG the default format with an option of
--pngif people still want that.