Module frame 

One canvas frame, over whatever Canvas the host hands in.

The on-screen shell and the kernel run this function; neither has a second copy. What is left outside it is only what the surface owns — the grid under the diagram, the widget the in-place editor is rendered as, and the easing a framing glides along.

Structs

Framed

What one canvas frame left for the chrome around it.

Functions

draw_debug_marks 🔒

Draw debug marks from the routing engine. Coordinates and sizes are in world units; Style applies the zoom transform and world→screen mapping, so they pass through unscaled.