constructor() {
    this.profiles = [];
    this.current = null;
    this.currentSet = [];
    this._profilesAddedCallbacks = [];
    this.queue = [];
    this.shouldHighlightRender = false;
    this.stylesheet = insertStylesheet();
    // keep track of all the active highlights
    this.highlights = [];
    // eslint-disable-next-line ember/new-module-imports
    this.isHighlightEnabled = compareVersion(Ember?.VERSION, '3.20.0') !== -1;
  }
A class for keeping track of active rendering profiles as a list.