您突出顯示的行名為stroke，您將在view配置中找到它，因為它是圖表視圖的一部分，并且提供白色或透明的值。

請參閱以下代碼段或編輯器參考：

{
  "$schema": "https://vega.github.io/schema/vega-lite/v5.json",
  "description": "Google's stock price over time.",
  "data": {"url": "data/stocks.csv"},
  "transform": [{"filter": "datum.symbol==='GOOG'"}],
  "mark": "line",
  "config": {"view": {"stroke": "transparent"}},
  "encoding": {
    "x": {"field": "date", "type": "temporal", "axis": {"grid": false}},
    "y": {"field": "price", "type": "quantitative", "axis": {"domain": false}}
  }
}