src/vs/workbench/contrib/comments/browser/commentsTreeViewer.ts/CommentNodeRenderer/getIcon
class CommentNodeRenderer:	private getIcon(threadState?: CommentThreadState): Codicon {
		if (threadState === CommentThreadState.Unresolved) {
			return Codicon.commentUnresolved;
		} else {
			return Codicon.comment;
		}
	}