message: Remove debug decorations.
diff: @@ -1131,7 +1131,6 @@ export abstract class ViewState3d extends ViewState {
  public drawDecorations(context: DecorateContext): void {
  this.drawSkyBox(context);
  this.drawGroundPlane(context);
  - this.drawDebugDecorations(context);
  }
  protected drawSkyBox(context: DecorateContext): void {
  @@ -1164,37 +1163,6 @@ export abstract class ViewState3d extends ViewState {
  gf.addArc(ellipse, true, true);
  context.addWorldDecoration(gf.finish()!);
  }
  -
  - protected drawDebugDecorations(context: DecorateContext) {
  - const rect = context.viewport.viewRect;
  - const radius = 0.05 * rect.width;
  - const center = new Point3d(0.5 * rect.width, 0.5 * rect.height, 0.0);
  - const ellipse = Arc3d.createXYEllipse(center, radius, radius);
  - const ellipse2 = Arc3d.createXYEllipse(center, radius * 1.1, radius * 1.1);
  - const graphic = context.createViewOverlay();
  - // const white = ColorDef.white.clone();
  - // const black = ColorDef.black.clone();
  - const white = new ColorDef(ColorByName.turquoise);
  - const black = new ColorDef(ColorByName.tomato);
  - white.setTransparency(165);
  - graphic.setSymbology(white, white, 4);
  - graphic.addArc2d(ellipse, true, true, 0.0);
  - black.setTransparency(100);
  - graphic.setSymbology(black, black, 4);
  - graphic.addArc2d(ellipse2, false, false, 0.0);
  - white.setTransparency(20);
  - graphic.setSymbology(white, white, 4);
  - graphic.addArc2d(ellipse, false, false, 0.0);
  - const gf = graphic.finish();
  - assert(undefined !== gf);
  - context.addViewOverlay(gf!);
  -
  - const line = context.createViewOverlay();
  - line.setSymbology(black, black, 10);
  - line.addLineString([new Point3d(0.25 * rect.width, 0.25 * rect.height, 0), new Point3d(0.75 * rect.width, 0.75 * rect.height, 0)]);
  - line.addPointString([new Point3d(0.25 * rect.width, 0.75 * rect.height, 0), new Point3d(0.75 * rect.width, 0.25 * rect.height, 0)]);
  - context.addViewOverlay(line.finish()!);
  - }
  }
  /** Defines a view of one or more SpatialModels.
  