message: use --vscode-widget-shadow color for tooltips.
diff: @@ -86,8 +86,6 @@ select {
  font-size: 13px;
  border-radius: 4px;
  box-shadow: 1px 1px 5px var(--vscode-widget-shadow);
  - border-color: var(--vscode-editorWidget-border);
  - border-width: 1px;
  }
  .tooltip-arrow,
  @@ -96,7 +94,6 @@ select {
  width: 8px;
  height: 8px;
  z-index: -1;
  - display: none; /* TODO: the arrow border is tricky to match, probably need an SVG shape instead */
  }
  .tooltip-arrow::before {
  