Instantly add component to context

add-component.js

class StylingComponent {
}

StylingComponent.$$styleContext = {
  classNames: "",
  userProps: {
    width: null,
    height: null,
    paddingLeft: 10,
    paddingRight: 10
  }
};

const Page1 = extends(Page)(function Page1(_super) {
  _super(this);
  const stylingComponent = new StylingComponent();
  stylingComponent.subscribeContext({
    type, // context type
    style, // style with native objects
    rawStyle // style with json objects
  }) {
    // can update any component here when theme is changed
    console.log('styling context');
    console.log(JSON.stringify(rawStyle));
  }
  this._children['instantComponent'] = stylingComponent;
})