Last modified: 2010-05-15 15:33:23 UTC
The |thumb image display tag will stretch an image if it is smaller than some predetermined size. Although the image itself is not rescaled, the box containing it is too large, and the image is scaled to fit that.
Just a note: it's intended to show the image stretched when a specific size is requested, so that eg small icons can be shown at a larger size without wasting time generating a large image (which potentially could be abusively large). However when just giving the |thumb| param it probably should use the real size if it's smaller than the default thumb size.
Using just |thumb| will not scale up images to more than 100% of their width (that one was fixed, though I don't know its number). However, if you specify a width in the markup, then it will go to that width regardless of the size of the source image. Since I don't think you were meaning that, then I'll close this.
