},ui:{base:2*s,max:3*s,items:new Set,topIndex:2*s},tooltip:{base:3*s,max:4*s,items:new Set,topIndex:3*s}};t.Stackable={properties:{_stackHost:{type:Object,value:function(){return this}},_stackTarget:{type:Object,value:null,observer:"_stackTargetChanged"},depth:{readOnly:!0,notify:!0,type:Number,value:0,observer:"_updateDepth"},stackType:{type:String,value:"ui",observer:"_updateType"}},_initialized:!1,attached:function(){e(this._stackHost,this._stackTarget,this.stackType),this._initialized=!0},detached:funct