message: applied event for animation manager
diff: @@ -22,7 +22,8 @@ class PluginAnimationManager extends StatefulPluginComponent<PluginAnimationMana
  private _params?: PD.For<PluginAnimationManager.State['params']> = void 0;
  readonly events = {
  - updated: this.ev()
  + updated: this.ev(),
  + applied: this.ev(),
  };
  get isEmpty() { return this.animations.length === 0; }
  @@ -32,6 +33,10 @@ class PluginAnimationManager extends StatefulPluginComponent<PluginAnimationMana
  this.events.updated.next();
  }
  + private triggerApply() {
  + this.events.applied.next();
  + }
  +
  getParams(): PD.Params {
  if (!this._params) {
  this._params = {
  @@ -150,6 +155,7 @@ class PluginAnimationManager extends StatefulPluginComponent<PluginAnimationMana
  } else if (newState.kind === 'skip') {
  if (this.state.animationState === 'playing') this._frame = requestAnimationFrame(this.animate);
  }
  + this.triggerApply();
  }
  getSnapshot(): PluginAnimationManager.Snapshot {
  