Kent Yao created SPARK-55780:
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Summary: Replace PNG logo with SVG in Spark Web UI
Key: SPARK-55780
URL: https://issues.apache.org/jira/browse/SPARK-55780
Project: Spark
Issue Type: Sub-task
Components: Web UI
Affects Versions: 4.2.0
Reporter: Kent Yao
Replace the rasterized `spark-logo-77x50px-hd.png` (77x50px) with an SVG
version derived from the official Apache Spark website logo
(`spark-logo-rev.svg`). SVG provides:\n- Resolution independence (crisp on
HiDPI/Retina displays)\n- Smaller file size for equivalent quality\n- Better
accessibility (scalable without artifacts)\n\nChanges:\n- Add `spark-logo.svg`
to UI static resources (converted from spark-website's spark-logo-rev.svg with
text fill changed from white to dark)\n- Update UIUtils.scala favicon and
navbar logo references (4 places)\n- Keep old PNG for backward compatibility
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