@Ashley - Here is a capx
And here is the exported capx as Node-Webkit
Here is what I get when I run this capx in PREVIEW and shrink the Chrome window. No seams. Looks just fine
However, when using Node-Webkit and shrinking (or enlarging) the window, I get seams.
I would be less confused if the seams both appeared in the preview, AND node-webkit, but that isn't the case...
Is this something to do with "Powers of"? If I colour these sprites in this capx to a solid colour, seams don't seem (no pun intended) to appear...