[skydhash]

> I just need to find the perfect GUI toolkit which allows Bézier Curve representations in a way which clicks and makes sense to me, and suits my next project.

Not a proper answer, but here is a very good video on splines:

https://youtu.be/jvPPXbo87ds

[WillAdams]

It was that video which gave me the hope that I would be able to master the math necessary for what I wish to do.