Some damning evidence you've shown. One small suggestion I would make is to compare the md5 hashes of the images. Obviously they appear to be the same as per the evidence you've shown, but I would see that as extra convincing.
I see only a handful of people have pressed the tweet button. Hopefully the front page of hacker news is a welcome bit of exposure that you weren't expecting ;)
Now the question is: Will email on acid man up? Or should you lawyer up?
If emailonacid's explanation is correct, they were "inspired" and wrote their own HTML and CSS. They could have easily designed the same image.
Given the pixel dimensions of a triangle, and the same software, should we expect the antialiasing or JPEG compression to be unequal? I'd be interesting in knowing which part of, say, Photoshop, adds randomness to such a deterministic process.
Now if there's EXIF data with timestamps or names, sure, good evidence. But this post seems like they're really stretching the "evidence". It's still very plausible that the other company looked at things, perhaps took some pixel measurements, and "recreated" it.
Edit: Also, check out where that triangle is used. The three images beneath it are very differently aligned. By their level of evidence, this disproves their point.
I'm surprised how HN is so uncritical in evaluating evidence and alternative explanations.
Yes but notice the mistakes the developer made when adding extraneous whitespace. Also the use of the same class names. At the very least some of the code was copied verbatim without attribution.
A single space at the end of a line? That's extremely common. I don't catch those until I check my diffs before commit. And on that particular line, the width attribute was "removed".
And the class name is "plusIcon", which has to be extremely common.
While it certainly looks like they might have copied the design, the evidence they provided is extremely flimsy and doesn't point to them copying the HTML or CSS.
A triangle of exactly the same height and width and at exactly the same anti-aliasing and exactly the same jpeg compression. Have you heard of Occam's Razor?
I see only a handful of people have pressed the tweet button. Hopefully the front page of hacker news is a welcome bit of exposure that you weren't expecting ;)
Now the question is: Will email on acid man up? Or should you lawyer up?