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Add responsive image tooling for post banners - #592
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Resize the banner to 1200px wide WebP (338 KB to 66 KB), give the eager hero image width, height and fetchpriority=high, and remove the unused 2x PNG. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Post authors can now export matching 1x and 2x PNGs and convert them into AVIF images with near-lossless WebP fallbacks. Post media selects the right density and prefers the much smaller AVIF source. Use the new pipeline for the Bootstrap 6 Alpha banner so its fine mesh stays crisp without making retina visitors download the original PNG.
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Images automagically compressed by Calibre's image-actions ✨ Compression reduced images by 81%, saving 1.3 MB.
2 images did not require optimisation. |
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Summary
pictureandsrcsetThe preferred 2x AVIF is 138 KiB, down from the 1.31 MiB near-lossless
WebP fallback, while preserving the banner's fine mesh detail.
Builds on and supersedes #587.
Testing
npm test