I tried progressive thumbs ($wgCustomConvertCommand = "convert %s -resize %wx%h -interlace plane %d";
) and the thumbs are about twice the filesize. That's correct? Too bad actually.
I tried progressive thumbs ($wgCustomConvertCommand = "convert %s -resize %wx%h -interlace plane %d";
) and the thumbs are about twice the filesize. That's correct? Too bad actually.