I don't know why there would be, but I came across a couple of posts where people seemed to suggest there might be.

I ask because I am working on a fairly complex project with lots of custom javascript scripting, which takes up a lot of space. I obviously won't want to get to 5000 lines and then find that Squiffy has a hard limit on length etc, or starts to bug out.

There's no limit. If something breaks then let me know and I'll fix it.

Thanks, Alex. I must say, I've been blown away at how adaptable Squiffy is. It's a fantastic bit of software, particularly if you're comfortable with Javascript.