1. Upload/overwrite:
	js/bootstrap.js
	js/bootstrap.min.js
	js/plugins.js
	css/animate.min.css
	css/bootstrap.css
	css/bootstrap.min.css
	css/font-awesome.css
	css/font-awesome.min.css
	css/vegas.min.css
	fonts/ --- all files


2. Open style.css and find "9.0 Overlay Styles". Add new code.
/*--- Code Start ---*/
.overlay {
	position: absolute;
	width: 100%;
	height: 100%;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	z-index: 0;
}

.overlay-color {
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	background: #000A1E;
	background: rgba(0,10,30,0.5);
	opacity: 0.75;
	filter: alpha(opacity=40);
	z-index: 0;
}

.overlay-image {
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	z-index: -1;
}
/*--- Code End ---*/


3. Open your .html file and replace code for overlays.

Before:
<!-- OVERLAY -->
<div class="overlay"></div>

After - all .html files - without section-slideshow-background.html:
<!-- OVERLAY -->
<div class="overlay">
		<div class="overlay-color"></div>
</div>

After - section-slideshow-background.html:
<!-- OVERLAY -->
<div class="overlay">
	<div class="overlay-color"></div>
	<div class="overlay-image"></div>
</div>


4. Open main.js and find this code "function initPageBackground() {". Replace code:

Before:
function initPageBackground() {
	[...]
	[...]
	[...]
}

After:
/*--- Code Start ---*/
function initPageBackground() {

	if($('body').hasClass('image-background')) { // IMAGE BACKGROUND

		$('body').vegas({
			delay: 0,
			slides: [
				{ src: "demo/bg-4.jpg" }
			]
		});

	} else if( $('body').hasClass('slide-background') ) { // SLIDESHOW BACKGROUND

		$('body').vegas({
			delay: 5000,
			slides: [
				{ src: "demo/bg-4.jpg" },
				{ src: "demo/bg-5.jpg" },
				{ src: "demo/bg-6.jpg" }
			],
			timer: false
		});

	} else if( $('body').hasClass('kenburns-background') ) { // Kenburns BACKGROUND

		$('body').vegas({
			delay: 5000,
			slides: [
				{ src: "demo/bg-4.jpg" },
				{ src: "demo/bg-5.jpg" },
				{ src: "demo/bg-6.jpg" }
			],
			animation: [ 'kenburnsUp', 'kenburnsDown', 'kenburnsLeft', 'kenburnsRight' ],
			timer: false
		});

	} else if($('body').hasClass('section-background')) { // SECTION BACKGROUND

		$('.home .overlay-image').vegas({
			delay: 0,
			slides: [
				{ src: "demo/bg-7.jpg" }
			]
		});

		$('.about .overlay-image').vegas({
			delay: 0,
			slides: [
				{ src: "demo/bg-2.jpg" }
			]
		});

		$('.contact .overlay-image').vegas({
			delay: 0,
			slides: [
				{ src: "demo/bg-3.jpg" }
			]
		});

		$('.slideshow-1 .overlay-image').vegas({
			delay: 3000,
			slides: [
				{ src: "demo/bg-4.jpg" },
				{ src: "demo/bg-5.jpg" },
				{ src: "demo/bg-6.jpg" }
			],
			timer: false
		});

	} else if($('body').hasClass('youtube-background')) { // YOUTUBE VIDEO BACKGROUND
		if($('body').hasClass('mobile')) {

			// Default background on mobile devices
			$('body').vegas({
				delay: 0,
				slides: [
					{ src: "demo/video/video.jpg" }
				]
			});

		} else {
			$(".player").each(function() {
				$(".player").mb_YTPlayer();
			});
		}
	} else if($('body').hasClass('youtube-list-background')) { // YOUTUBE LIST VIDEOS BACKGROUND
		if($('body').hasClass('mobile')) {

			// Default background on mobile devices
			$('body').vegas({
				delay: 0,
				slides: [
					{ src: "demo/video/video.jpg" }
				]
			});

		} else {

			var videos = [
				{videoURL: "0pXYp72dwl0",containment:'body',autoPlay:true, mute:true, startAt:0,opacity:1, loop:false, ratio:"4/3", addRaster:true},
				{videoURL: "9d8wWcJLnFI",containment:'body',autoPlay:true, mute:true, startAt:0,opacity:1, loop:false, ratio:"4/3", addRaster:false},
				{videoURL: "nam90gorcPs",containment:'body',autoPlay:true, mute:true, startAt:0,opacity:1, loop:false, ratio:"4/3", addRaster:true}
			];

			$(".player").YTPlaylist(videos, true);

		}
	} else if($('body').hasClass('mobile')) { // MOBILE BACKGROUND - Image background instead of video on mobile devices
		if($('body').hasClass('video-background')) {

			// Default background on mobile devices
			$("body").backstretch([
				"demo/video/video.jpg"
			]);

		}
	}

}
/*--- Code End ---*/


5. Add your image url in "src".