How to use the pro-gallery/dist/src/constants.infoBehaviourOnHover function in pro-gallery

// actionsColorExpand: color-5
    // titleFontExpand: font_5
    // titleColorExpand: color-5
    // descriptionFontExpand: font_8
    // descriptionColorExpand: color-5,
    galleryAlignExpand: 'left',
    // addToCartBackColorExpand: color-5,
    // addToCartFontExpand: font-8
    // addToCartColorExpand: color-1
    addToCartBorderWidth: 1,
    //addToCartBorderColor: color-5,
    addToCartButtonText: '',
    slideshowInfoSize: 200,
    playButtonForAutoSlideShow: false,
    allowSlideshowCounter: false,
    hoveringBehaviour: Consts.infoBehaviourOnHover.APPEARS,
    thumbnailSize: 120,
    magicLayoutSeed: 1,
    //itemOpacity:'color-5', startWithOpacity: 0.60,
    //itemIconColorSlideshow: 'color-5'
    // itemIconColor: color-1
    // arrowsColor: 'color-1'
    imageHoverAnimation: Consts.imageHoverAnimations.NO_EFFECT,
    // itemFont: 'font_5'  // startWithSize: 22,
    // itemFontColor: 'color-1'
    // itemFontSlideshow:'font_5' // startWithSize: 22,
    // itemFontColorSlideshow: 'color-5'
    // itemDescriptionFont: 'font_8' // startWithSize: 15
    // itemDescriptionFontColor: 'color-1'
    // itemDescriptionFontSlideshow: 'font_8' // startWithSize: 15
    // itemDescriptionFontColorSlideshow: 'color-5'
    // textBoxFillColor: 'color-2', //startWithOpacity: 1,