title: How to de-interlace png files?
body: <p>For Slick to load png files without a warning, they cannot be interlaced.  I don't have photoshop, and I don't want to get it.  Is there an alternative way to de-interlace images, perhaps through Paint.net plugins?  I'm on a Windows machine, only mentioning this because there is a multitude of de-interlacing programs that only work on Mac or Linux.</p>