const collectionItem = new FlexBox({
      parent: scrollFlexBox.getContent(),
      flexDirection: FlexBox.COLUMN,
      element: new Container()
    });

const collectionLine = new FlexBox({
      parent: collectionItem,
      flexDirection: FlexBox.ROW,
      top: 40,
      element: new Container()
    });

    const item1 = new FlexSprite({
      parent: collectionLine,
      display: FlexBox.FLEX,
      width: FlexBox.AUTO,
      autoContain: true,
      element: new Sprite(uiSheet.textures['iconCat.png'])
    });

    const item2 = new FlexSprite({
      parent: collectionLine,
      display: FlexBox.FLEX,
      width: FlexBox.AUTO,
      autoContain: true,
      element: new Sprite(uiSheet.textures['iconCat.png'])
    });

    const item3 = new FlexSprite({
      parent: collectionLine,
      display: FlexBox.FLEX,
      top: 30,
      width: FlexBox.AUTO,
      autoContain: true,
      element: new Sprite(uiSheet.textures['iconCat.png'])
    });