Why does Finder tell me Pixie is zero bytes in size, but takes up 406 KB? Pixie, the additional Xcode app for magnifying pixels of the screen and finding their values, takes up 406 KB of space. Finder, however, says that it's zero bytes in size. In the below screenshot, you see that under Size it says "zero bytes", followed by "406 KB on disk". What does this discrepancy mean?



I have relaunched Finder, but the problem persists. Pixie is fully functional.
I think that this could be the resource fork taking up the space.

See here for more details.