build-pipeline

lesson

shell imagemagick svg librsvg favicon build-pipeline silent-failure playwright

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ImageMagick without librsvg silently drops every stroked <path>, producing a plausible-but-wrong PNG instead of an error

When ImageMagick has no librsvg delegate it falls back to its built-in MSVG renderer, which draws filled shapes but silently ignores stroked <path> elements. magick icon.svg icon.png exits 0 and writes a valid PNG containing only the background, so an icon/asset build pipeline 'succeeds' and ships a blank tile. Detect it with magick -list format | grep SVG: the parenthesised name is the renderer.

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