src/vs/workbench/contrib/debug/browser/breakpointWidget.ts/BreakpointWidget/centerInputVertically
class BreakpointWidget:	private centerInputVertically() {
		if (this.container && typeof this.heightInPx === 'number') {
			const lineHeight = this.input.getOption(EditorOption.lineHeight);
			const lineNum = this.input.getModel().getLineCount();
			const newTopMargin = (this.heightInPx - lineNum * lineHeight) / 2;
			this.inputContainer.style.marginTop = newTopMargin + 'px';
		}
	}