Extending L.ImageOverlay to add the layer to the tile pane instead of the overlay pane

gistfile1.js

var TileImageOverlay = L.ImageOverlay.extend({
  	onAdd: function (map) {
  		this._map = map;
  
  		if (!this._image) {
  			this._initImage();
  		}
      // NOTE: adding to tilePane instead of overlayPane
  		map._panes.tilePane.appendChild(this._image);
  
  		map.on('viewreset', this._reset, this);
  
  		if (map.options.zoomAnimation && L.Browser.any3d) {
  			map.on('zoomanim', this._animateZoom, this);
  		}
  
  		this._reset();
	}
});