private/utils/dev-fixtures/overlay.js
function (name) {
    name = name || BASE_OVERLAY;
    if (!this.instances[name]) {
      this.instances[name] = DevFixturesOverlay.create({name: name});
    }
    return this.instances[name];
  }
function (name) {
    name = name || BASE_OVERLAY;
    if (!this.instances[name]) {
      this.instances[name] = DevFixturesOverlay.create({name: name});
    }
    return this.instances[name];
  }
function ( name ) { name = name || BASE_OVERLAY ; if ( ! this . instances [ name ] ) { this . instances [ name ] = DevFixturesOverlay . create ( { name : name } ) ; } return this . instances [ name ] ; }
Get the singleton instance for the given overlay name

@method for
@param {string} name
@return {DevFixturesOverlay}
Get the singleton instance for the given overlay name