message: Fixed gradient background graphic test
diff: @@ -16,9 +16,11 @@ function generateData() {
  function runTestCase(container) {
  const chart = LightweightCharts.createChart(container, {
  layout: {
  - backgroundType: LightweightCharts.ColorType.Gradient,
  - backgroundGradientStartColor: '#b1ff73',
  - backgroundGradientEndColor: '#1106b1',
  + background: {
  + type: LightweightCharts.ColorType.VerticalGradient,
  + topColor: '#b1ff73',
  + bottomColor: '#1106b1',
  + },
  },
  });
  