golden hour

/var/www/html/wp-includes/js/jquery/ui

File/Folder	Size	Actions
accordion.js	15.49 KB
accordion.min.js	8.46 KB
autocomplete.js	17.19 KB
autocomplete.min.js	8.34 KB
button.js	9.74 KB
button.min.js	5.44 KB
checkboxradio.js	7.33 KB
checkboxradio.min.js	4.27 KB
controlgroup.js	8.36 KB
controlgroup.min.js	4.26 KB
core.js	47.81 KB
core.min.js	20.3 KB
datepicker.js	78.88 KB
datepicker.min.js	35.3 KB
dialog.js	22.51 KB
dialog.min.js	12.48 KB
draggable.js	34.51 KB
draggable.min.js	17.86 KB
droppable.js	12.52 KB
droppable.min.js	6.43 KB
effect-blind.js	1.55 KB
effect-blind.min.js	838 B
effect-bounce.js	2.55 KB
effect-bounce.min.js	949 B
effect-clip.js	1.49 KB
effect-clip.min.js	754 B
effect-drop.js	1.51 KB
effect-drop.min.js	709 B
effect-explode.js	2.81 KB
effect-explode.min.js	1.05 KB
effect-fade.js	916 B
effect-fade.min.js	483 B
effect-fold.js	2.08 KB
effect-fold.min.js	978 B
effect-highlight.js	1.16 KB
effect-highlight.min.js	606 B
effect-puff.js	943 B
effect-puff.min.js	468 B
effect-pulsate.js	1.48 KB
effect-pulsate.min.js	646 B
effect-scale.js	1.29 KB
effect-scale.min.js	681 B
effect-shake.js	1.79 KB
effect-shake.min.js	804 B
effect-size.js	5.19 KB
effect-size.min.js	2.35 KB
effect-slide.js	1.87 KB
effect-slide.min.js	875 B
effect-transfer.js	836 B
effect-transfer.min.js	400 B
effect.js	39.89 KB
effect.min.js	16.52 KB
menu.js	17.36 KB
menu.min.js	9.31 KB
mouse.js	5.98 KB
mouse.min.js	3.3 KB
progressbar.js	4.1 KB
progressbar.min.js	2.46 KB
resizable.js	29.22 KB
resizable.min.js	18.04 KB
selectable.js	7.88 KB
selectable.min.js	4.35 KB
selectmenu.js	15.68 KB
selectmenu.min.js	9.08 KB
slider.js	19.06 KB
slider.min.js	10.46 KB
sortable.js	44.95 KB
sortable.min.js	24.2 KB
spinner.js	13.85 KB
spinner.min.js	7.36 KB
tabs.js	23 KB
tabs.min.js	11.64 KB
tooltip.js	13.95 KB
tooltip.min.js	5.95 KB

Edit: effect-bounce.js

/*!
 * jQuery UI Effects Bounce 1.12.1
 * http://jqueryui.com
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 */

//>>label: Bounce Effect
//>>group: Effects
//>>description: Bounces an element horizontally or vertically n times.
//>>docs: http://api.jqueryui.com/bounce-effect/
//>>demos: http://jqueryui.com/effect/

( function( factory ) {
	if ( typeof define === "function" && define.amd ) {

// AMD. Register as an anonymous module.
		define( [
			"jquery",
			"./effect"
		], factory );
	} else {

// Browser globals
		factory( jQuery );
	}
}( function( $ ) {

return $.effects.define( "bounce", function( options, done ) {
	var upAnim, downAnim, refValue,
		element = $( this ),

// Defaults:
		mode = options.mode,
		hide = mode === "hide",
		show = mode === "show",
		direction = options.direction || "up",
		distance = options.distance,
		times = options.times || 5,

// Number of internal animations
		anims = times * 2 + ( show || hide ? 1 : 0 ),
		speed = options.duration / anims,
		easing = options.easing,

// Utility:
		ref = ( direction === "up" || direction === "down" ) ? "top" : "left",
		motion = ( direction === "up" || direction === "left" ),
		i = 0,

queuelen = element.queue().length;

$.effects.createPlaceholder( element );

refValue = element.css( ref );

// Default distance for the BIGGEST bounce is the outer Distance / 3
	if ( !distance ) {
		distance = element[ ref === "top" ? "outerHeight" : "outerWidth" ]() / 3;
	}

if ( show ) {
		downAnim = { opacity: 1 };
		downAnim[ ref ] = refValue;

// If we are showing, force opacity 0 and set the initial position
		// then do the "first" animation
		element
			.css( "opacity", 0 )
			.css( ref, motion ? -distance * 2 : distance * 2 )
			.animate( downAnim, speed, easing );
	}

// Start at the smallest distance if we are hiding
	if ( hide ) {
		distance = distance / Math.pow( 2, times - 1 );
	}

downAnim = {};
	downAnim[ ref ] = refValue;

// Bounces up/down/left/right then back to 0 -- times * 2 animations happen here
	for ( ; i < times; i++ ) {
		upAnim = {};
		upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;

element
			.animate( upAnim, speed, easing )
			.animate( downAnim, speed, easing );

distance = hide ? distance * 2 : distance / 2;
	}

// Last Bounce when Hiding
	if ( hide ) {
		upAnim = { opacity: 0 };
		upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;

element.animate( upAnim, speed, easing );
	}

element.queue( done );

$.effects.unshift( element, queuelen, anims + 1 );
} );

} ) );