- Work in progress but enough progress to commit because it basically works, it's just a bit ugly
- Node height is now recalculated every time a new element is added to the node
- Introduced `Archetype.UseFixedSize` for special nodes like *Color Gradient* or *Curve* that must rely on hardcoded size for now because the auto sizing does not take elements like the gradient editor or curve editor into account (ideally in the future it will)
- Fixed input and output box spacing (still some 1px offsets that I'm unsure where they are from, could be placebo though)
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