Module walker 

Generic JSON walker — single source of truth for “show a component”.

Dispatch by JSON shape:

Shape	Widget
Object { x, y, z }	Vec3 with X/Y/Z badges
Object { x, y, z, w }	Quaternion (4 drag values)
Object { r, g, b, a }	colour swatch + RGBA dragvalues
Object { "Variant": <inner> }	enum: variant title + recurse
Object { … } (other)	indented row of children
Number	DragValue
Bool	checkbox
String	text input
Array<f64> (3 or 4)	falls through to Vec3 / colour
Null	dim “null” label

Functions

render_array 🔒

Generic array row. Numeric arrays of length 3 / 4 are treated like Vec3 / Vec4 with axis colours; everything else falls back to “[i] = …” rows.

render_field 🔒

Renders a single labelled row. Picks a widget by leaf type or recurses for nested structure.

render_object 🔒

Walks a JSON object, picking the right widget for each shape.

render_value

Renders a top-level component value. Returns true if the user mutated any leaf — the caller queues a SetComponentJson edit in that case.