color = 0
function colorRotate(){
	color += 10
	color = color%360
	document.getElementsByClassName('screen-content')[0].style.filter = "sepia(94%) hue-rotate("+color+"deg) saturate(7) brightness(100%)" 
}

if( Math.random() > 0.5){
	if( Math.random() > 0.9){
		
		document.getElementsByClassName('screen-content')[0].style.filter = "sepia(94%) hue-rotate("+Math.floor(Math.random()*360)+"deg) saturate(7) brightness(100%)" 
	} else {
		setInterval(colorRotate, 50)
	}
}