Class as a type. Also use data classes as own parameter type.

class_as_parameter_type.ts

const getId = (start): (() => number) => (): number => start++;

export class SomeData {
  static getId = getId(0);

  public icon: string;
  public text: string = "";
  public color: string;
  public idPrefix: string = 'data-';
  public id: string;

  constructor(config: SomeData) {
    Object.assign(this, config);
    // template logic
    this.id = config.id || this.idPrefix + SomeData.getId();
  }
}

// usage

const data = new SomeData(<SomeData>{icon: "icon.png", color: '#000', text: 'some text'});
const or_clone = new SomeData(data);