src/vs/workbench/browser/parts/views/checkbox.ts/TreeItemCheckbox/createCheckbox
class TreeItemCheckbox:	private createCheckbox(node: ITreeItem) {
		if (node.checkbox) {
			this.toggle = new Toggle({
				isChecked: node.checkbox.isChecked,
				title: this.createCheckboxTitle(node.checkbox),
				icon: node.checkbox.isChecked ? Codicon.check : undefined,
				...defaultToggleStyles
			});

			this.toggle.domNode.classList.add(TreeItemCheckbox.checkboxClass);
			DOM.append(this.checkboxContainer, this.toggle.domNode);
			this.registerListener(node);
		}
	}