"Yes, it is incompatible because it's an extension for FancyMenu v2. You are using v3.
You don't need the extension for v3, because its features are in the base mod now."

Thank you for this explanation. How do I add audio to my Title Screen? I could not find a section on the wiki that covers this.

Never mind. I figured it out. Thanks, again, for your help and these awesome tools for customizing modpacks.