Processing

SketchSystems.spec

Processing
  Waiting
    fetch -> Fetching
  Fetching
    processed -> Done
    error -> Error
    not processed -> Waiting
    
Done

Error

SketchSystems_prototype.js

function render(model){
  let current_state = model.root.children.find(({ is_active }) => is_active);
  console.log(model);
  return $("h1",
           {style: {color: "darkBlue"}},
           `The current state is: ${current_state.name}`);
}