areas are highlighted in yellow';Polymer.dom(this.controls_).appendChild(showUnrecordedRegionCheckbox);const showBottlenecksCheckbox=tr.ui.b.createCheckBox(this,'showBottlenecks','layerView.showBottlenecks',true,'Bottlenecks');showBottlenecksCheckbox.title='When checked, scroll bottlenecks are highlighted';Polymer.dom(this.controls_).appendChild(showBottlenecksCheckbox);const showLayoutRectsCheckbox=tr.ui.b.createCheckBox(this,'showLayoutRects','layerView.showLayoutRects',false,'Layout rects');sho...