How Do You Open Source Animation and code?

danmm asks: "Recently, I've been trying to combine clip-art-style illustration with animating code into GUI components within Macromedia Flash (for distribution as an .mxp file via the company's Exchange site). Now, I'd like to start open-sourcing some of these things -- but this is a matter of curiousity: how does one open-source an amalgam of creative (art) content and software code? How's it different from pure code? If anyone is curious, my project is located here"