modules/controls/src/main/java/javafx/scene/control/skin/ColorPalette.java

*** 185,196 ****
              xAdjust = -focusedSquare.getWidth() + scaleAdjust;
          } else {
              xAdjust = focusedSquare.getWidth() / 2.0 + scaleAdjust;
          }
  
!         hoverSquare.setLayoutX(snapPosition(x) - xAdjust);
!         hoverSquare.setLayoutY(snapPosition(y) - focusedSquare.getHeight() / 2.0 + (hoverSquare.getScaleY() == 1.0 ? 0 : focusedSquare.getHeight() / 4.0));
      }
  
      private void buildCustomColors() {
          final ObservableList<Color> customColors = colorPicker.getCustomColors();
          customColorNumber = customColors.size();
--- 185,196 ----
              xAdjust = -focusedSquare.getWidth() + scaleAdjust;
          } else {
              xAdjust = focusedSquare.getWidth() / 2.0 + scaleAdjust;
          }
  
!         hoverSquare.setLayoutX(snapPositionX(x) - xAdjust);
!         hoverSquare.setLayoutY(snapPositionY(y) - focusedSquare.getHeight() / 2.0 + (hoverSquare.getScaleY() == 1.0 ? 0 : focusedSquare.getHeight() / 4.0));
      }
  
      private void buildCustomColors() {
          final ObservableList<Color> customColors = colorPicker.getCustomColors();
          customColorNumber = customColors.size();