https://en.wikipedia.org/wiki/File:Areas_of_insect_wing.svg shows a strange black box in the image at all resolutions, but this box is not present in the original image https://upload.wikimedia.org/wikipedia/commons/b/b8/Areas_of_insect_wing.svg
This is also true for renders on https://commons.wikimedia.org/wiki/File:Areas_of_insect_wing.svg
This black rectangle is present on the picture in wikipedia article.
It's present on all thumbnails/resized images in .png, the original .svg does not have that.
Cannot reproduce the issue locally when using ImageMagick to convert from SVG to PNG:
$:acko\> wget https://upload.wikimedia.org/wikipedia/commons/b/b8/Areas_of_insect_wing.svg $:acko\> convert -resize 1200x601 Areas_of_insect_wing.svg Areas_of_insect_wing.png $:acko\> which convert /usr/bin/convert $:acko\> rpm -qf /usr/bin/convert ImageMagick-6.9.3.0-6.fc25.x86_64
See Black rectangle (Flowed Text bug), "Chiswick Chap" already uploaded a new revision removing the flow elements, so this ticket can be closed.