VIX-68. The editor is now aware of curves and gradients that change and will re-render any effects tied them in the background when they change. Required some changes to the effects to properly update the IsDirty flag.
Add Color Gradient Library editor access to the Tools menu to go along with the Curve Library Editor. With the work on VIX-68 this will give central access to the editors without having to edit a effect that has the library curve in it.