Integrating Pinegrow with an Angular (post AngularJS) CLI Workflow

How does the Pinegrow team recommend or envisage using Pinegrow to feed UI elements into a development team that is using Angular CLI to generate sites, pages, and components without a duplication of effort?

How might a UI/UX designer in Pinegrow push polished UI content into that development team such that the development team could use the UI design as-is and “merely” implement the model and controller aspects of the overall solution?

Another way to ask the question might be: how can Pinegrow be used as a GUI builder for components which are populated with live data from real sources?