How to Update Style from checkbox Trait?

Hi @artf I am trying to update the style using the checkbox trait but it's not calling the function. Here is the code

editor.DomComponents.addType('grid-item', {
    model: {
      center: false,
      defaults: {
        traits:[
          ...editor.Components.getType('default').model.prototype.defaults.traits,
          ...[
            {
              name: 'center',
              label: 'Center content',
              type: 'checkbox',
              changeProp: 1,
            }
          ]
        ]
      },
    },
    view: {
      init(){
       // this.listenTo(this, 'change:center', this.updatestyle);
        this.on("change:center", this.updatestyle);
      },
      updatestyle(){
        const b = this.model.get('center');
        console.log(b);
        this.addStyle({'justify-content':'center'});
      }
    }
  });

I really appreciate any insight that you can provide! Thanks