deactivate() {

		// Only proceed if enabled in config
		if( this.Reveal.getConfig().overview ) {

			this.active = false;

			this.Reveal.getRevealElement().classList.remove( 'overview' );

			// Temporarily add a class so that transitions can do different things
			// depending on whether they are exiting/entering overview, or just
			// moving from slide to slide
			this.Reveal.getRevealElement().classList.add( 'overview-deactivating' );

			setTimeout( () => {
				this.Reveal.getRevealElement().classList.remove( 'overview-deactivating' );
			}, 1 );

			// Move the background element back out
			this.Reveal.getRevealElement().appendChild( this.Reveal.getBackgroundsElement() );

			// Clean up changes made to slides
			queryAll( this.Reveal.getRevealElement(), SLIDES_SELECTOR ).forEach( slide => {
				transformElement( slide, '' );

				slide.removeEventListener( 'click', this.onSlideClicked, true );
			} );

			// Clean up changes made to backgrounds
			queryAll( this.Reveal.getBackgroundsElement(), '.slide-background' ).forEach( background => {
				transformElement( background, '' );
			} );

			this.Reveal.transformSlides( { overview: '' } );

			const indices = this.Reveal.getIndices();

			this.Reveal.slide( indices.h, indices.v );
			this.Reveal.layout();
			this.Reveal.cueAutoSlide();

			// Notify observers of the overview hiding
			this.Reveal.dispatchEvent({
				type: 'overviewhidden',
				data: {
					'indexh': indices.h,
					'indexv': indices.v,
					'currentSlide': this.Reveal.getCurrentSlide()
				}
			});

		}
	}
Exits the slide overview and enters the currently
active slide.