No border around thumbnail....

There's a white border around all of the thumbnails in this folder EXCEPT the aurora borealis one. They're all the same resolution (1280x800), why does that one look different?

The ones with the white border are previews that OS X generates. The one without a border has a custom icon generated by some application, like Graphic Converter for example, and that overrides the one OS X makes.

If you want a white border on that, right-click, hit Get Info, single-click on the icon in the corner, and press delete. You'll then see a generic system icon, like what you should see now using Get Info on the other pics. After a couple seconds, OS X will automatically rebuild the icon preview in the Finder window.

Thanks, that makes sense now.

I would never have thought of someone doing that, it seems so pointless.

crossbonesX said:

Thanks, that makes sense now.

I would never have thought of someone doing that, it seems so pointless.

Click to expand...

Well it seems pointless now, but then OS X hasn't always generated thumbnail previews of pictures on its own. I want to say this first came about with Leopard, so before then, you'd only have a generic icon without the help of 3rd-party apps making the custom ones. Personally, I prefer 'em without the white border.