> I just downloaded and built it from source. To those accustomed to
> Gimp, where filter effects destructively modify the pixels of the
> image, it���s worth noting that Inkscape���s effects are non-destructive:
> apply a pixel filter to a path, and your original path is unaffected
> and remains editable as it was before.
>
> So as you edit the path, the filters get continuously re-applied to the
> new path. This does slow things down somewhat, but it is very useful to
> be able to let you try different things and change your mind, or even
> remove the filter altogether.
>
> Or you can temporarily disable a filter to speed up editing without
> removing it, then turn it on again afterwards.

Good stuff!

Cheers, Peter