diff --git a/README.md b/README.md
index 6b253964..e756ad34 100644
--- a/README.md
+++ b/README.md
@@ -579,7 +579,7 @@ libraryDependencies += "org.knowm.xchart" % "xchart" % "3.8.6" exclude("de.erich
 
 #### Formatting
 
-    mvn com.coveo:fmt-maven-plugin:format
+    mvn com.spotify.fmt:fmt-maven-plugin:format
     
 Formats your code using [google-java-format](https://github.com/google/google-java-format) which follows [Google's code styleguide](https://google.github.io/styleguide/javaguide.html).
 
diff --git a/xchart/src/main/java/org/knowm/xchart/CategoryChart.java b/xchart/src/main/java/org/knowm/xchart/CategoryChart.java
index da7e44d3..30c3487c 100644
--- a/xchart/src/main/java/org/knowm/xchart/CategoryChart.java
+++ b/xchart/src/main/java/org/knowm/xchart/CategoryChart.java
@@ -257,6 +257,7 @@ public CategorySeries updateCategorySeries(
         Utils.getNumberListFromDoubleArray(newYData),
         Utils.getNumberListFromDoubleArray(newErrorBarData));
   }
+
   ///////////////////////////////////////////////////
   // Internal Members and Methods ///////////////////
   ///////////////////////////////////////////////////
diff --git a/xchart/src/main/java/org/knowm/xchart/OHLCSeries.java b/xchart/src/main/java/org/knowm/xchart/OHLCSeries.java
index bea3c9e6..99205ff3 100644
--- a/xchart/src/main/java/org/knowm/xchart/OHLCSeries.java
+++ b/xchart/src/main/java/org/knowm/xchart/OHLCSeries.java
@@ -15,8 +15,10 @@ public class OHLCSeries extends MarkerSeries {
   private long[] volumeData;
   private double[] yData;
   private OHLCSeriesRenderStyle ohlcSeriesRenderStyle;
+
   /** Up Color */
   private Color upColor;
+
   /** Down Color */
   private Color downColor;
 
diff --git a/xchart/src/main/java/org/knowm/xchart/RadarChart.java b/xchart/src/main/java/org/knowm/xchart/RadarChart.java
index a7db383d..8f03c760 100644
--- a/xchart/src/main/java/org/knowm/xchart/RadarChart.java
+++ b/xchart/src/main/java/org/knowm/xchart/RadarChart.java
@@ -77,6 +77,7 @@ public void setRadiiLabels(String[] radiiLabels) {
 
     this.radiiLabels = radiiLabels;
   }
+
   /**
    * Add a series for a Radar type chart
    *
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/Axis.java b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/Axis.java
index cf9d5fde..8a08d2fc 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/Axis.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/Axis.java
@@ -39,16 +39,22 @@ public class Axis<ST extends AxesChartStyler, S extends AxesChartSeries> impleme
   private final Rectangle2D.Double bounds;
 
   private final ST axesChartStyler;
+
   /** the axis title */
   private final AxisTitle<ST, S> axisTitle;
+
   /** the axis tick */
   private final AxisTick<ST, S> axisTick;
+
   /** the axis direction */
   private final Direction direction;
+
   /** the axis group index * */
   private final int index;
+
   /** the dataType */
   private Series.DataType dataType;
+
   /** the axis tick calculator */
   private AxisTickCalculator axisTickCalculator;
 
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/AxisTick.java b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/AxisTick.java
index 926066b4..3fdc4e89 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/AxisTick.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/AxisTick.java
@@ -11,8 +11,10 @@ public class AxisTick<ST extends AxesChartStyler, S extends AxesChartSeries> imp
 
   private final Chart<ST, S> chart;
   private final Direction direction;
+
   /** the axisticklabels */
   private final AxisTickLabels<ST, S> axisTickLabels;
+
   /** the axistickmarks */
   private final AxisTickMarks<ST, S> axisTickMarks;
 
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/Chart.java b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/Chart.java
index 7ba3785b..fc4e6e4d 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/Chart.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/Chart.java
@@ -111,6 +111,7 @@ protected void setHeight(int height) {
 
     this.height = height;
   }
+
   // TODO remove public
   public String getTitle() {
 
@@ -142,6 +143,7 @@ public void setYAxisTitle(String yAxisTitle) {
 
     this.yAxisTitle = yAxisTitle;
   }
+
   // TODO these related methods don't make sense for all chart types
   public String getYAxisGroupTitle(int yAxisGroup) {
 
@@ -172,6 +174,7 @@ public void setCustomXAxisTickLabelsFormatter(Function<Double, String> customFor
     AxesChartStyler axesChartStyler = (AxesChartStyler) (styler);
     axesChartStyler.setxAxisTickLabelsFormattingFunction(customFormattingFunction);
   }
+
   /**
    * @Deprecated - use styler instead
    *
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/ChartZoom.java b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/ChartZoom.java
index 53e57092..98d28b5c 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/ChartZoom.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/ChartZoom.java
@@ -146,6 +146,7 @@ public boolean filterXByScreen(int screenXmin, int screenXmax) {
     }
     return filtered;
   }
+
   /**
    * Is there a point selected in all series.
    *
@@ -218,6 +219,7 @@ public void actionPerformed(ActionEvent e) {
     // reset button pressed
     resetZoom();
   }
+
   /**
    * Whether the selectZoom overlaps with the chart.plot
    *
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/PlotContent_Pie.java b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/PlotContent_Pie.java
index 18bf9d95..94d6f52d 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/PlotContent_Pie.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/PlotContent_Pie.java
@@ -29,6 +29,7 @@ public class PlotContent_Pie<ST extends PieStyler, S extends PieSeries>
     super(chart);
     pieStyler = chart.getStyler();
   }
+
   // TODO get rid of this
   public static Shape getDonutSliceShape(
       Rectangle2D pieBounds, double thickness, double start, double extent) {
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/ToolTips.java b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/ToolTips.java
index 16fd90b0..9fc4634a 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/chartpart/ToolTips.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/chartpart/ToolTips.java
@@ -125,6 +125,7 @@ public void paint(Graphics2D g) {
       }
     }
   }
+
   ////////////////////////////////////////////////
   /// PAINTING //////////////////////////////////
   ///////////////////////////////////////////////
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/series/AxesChartSeries.java b/xchart/src/main/java/org/knowm/xchart/internal/series/AxesChartSeries.java
index bc0aced9..9d8bdcff 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/series/AxesChartSeries.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/series/AxesChartSeries.java
@@ -7,18 +7,25 @@ public abstract class AxesChartSeries extends Series {
 
   final DataType xAxisDataType;
   final DataType yAxisType;
+
   /** the minimum value of axis range */
   protected double xMin;
+
   /** the maximum value of axis range */
   protected double xMax;
+
   /** the minimum value of axis range */
   protected double yMin;
+
   /** the maximum value of axis range */
   protected double yMax;
+
   /** Line Style */
   private BasicStroke stroke;
+
   /** Line Color */
   private Color lineColor;
+
   /** Line Width */
   private float lineWidth = -1.0f;
 
diff --git a/xchart/src/main/java/org/knowm/xchart/internal/series/Series.java b/xchart/src/main/java/org/knowm/xchart/internal/series/Series.java
index d31a366e..91c21696 100644
--- a/xchart/src/main/java/org/knowm/xchart/internal/series/Series.java
+++ b/xchart/src/main/java/org/knowm/xchart/internal/series/Series.java
@@ -16,6 +16,7 @@ public abstract class Series {
   // TODO there is not always a y-axis group (pie chart for example) move this to an axis series
   // tyoe??
   private int yAxisGroup = 0;
+
   /** the yAxis decimalPattern */
   private String yAxisDecimalPattern;
 
diff --git a/xchart/src/main/java/org/knowm/xchart/style/PieStyler.java b/xchart/src/main/java/org/knowm/xchart/style/PieStyler.java
index 66b6a249..6df15afa 100644
--- a/xchart/src/main/java/org/knowm/xchart/style/PieStyler.java
+++ b/xchart/src/main/java/org/knowm/xchart/style/PieStyler.java
@@ -288,6 +288,7 @@ public Color getLabelsFontColor(Color backgroundColor) {
     return FontColorDetector.getAutomaticFontColor(
         backgroundColor, labelsFontColorAutomaticDark, labelsFontColorAutomaticLight);
   }
+
   /**
    * Sets the color of the Font used for chart annotations
    *
@@ -324,6 +325,7 @@ public PieStyler setLabelsFontColorAutomaticDark(Color labelsFontColorAutomaticD
     this.labelsFontColorAutomaticDark = labelsFontColorAutomaticDark;
     return this;
   }
+
   /**
    * Set the theme the styler should use
    *
diff --git a/xchart/src/main/java/org/knowm/xchart/style/Styler.java b/xchart/src/main/java/org/knowm/xchart/style/Styler.java
index 38f3438a..c30218eb 100644
--- a/xchart/src/main/java/org/knowm/xchart/style/Styler.java
+++ b/xchart/src/main/java/org/knowm/xchart/style/Styler.java
@@ -397,6 +397,7 @@ public Color getLegendBackgroundColor() {
 
     return legendBackgroundColor;
   }
+
   /**
    * Set the chart legend background color
    *
@@ -499,6 +500,7 @@ public enum LegendPosition {
     InsideS,
     OutsideS
   }
+
   /**
    * Set the legend layout
    *
@@ -680,6 +682,7 @@ public Styler setAnnotationLineColor(Color annotationLineColor) {
     this.annotationLineColor = annotationLineColor;
     return this;
   }
+
   // Chart Button ///////////////////////////////
 
   public Color getChartButtonBackgroundColor() {
@@ -876,6 +879,7 @@ public boolean getAntiAlias() {
 
     return antiAlias;
   }
+
   // TODO add javadocs to all setters that are not yet documented.
   public Styler setAntiAlias(boolean newVal) {
 
@@ -948,6 +952,7 @@ public Styler setYAxisGroupTitleColor(int yAxisGroup, Color yAxisColor) {
     yAxisGroupTitleColorMap.put(yAxisGroup, yAxisColor);
     return this;
   }
+
   // Line, Scatter, Area Charts ///////////////////////////////
 
   public int getMarkerSize() {
diff --git a/xchart/src/main/java/org/knowm/xchart/style/XYStyler.java b/xchart/src/main/java/org/knowm/xchart/style/XYStyler.java
index 84939f37..d300abef 100644
--- a/xchart/src/main/java/org/knowm/xchart/style/XYStyler.java
+++ b/xchart/src/main/java/org/knowm/xchart/style/XYStyler.java
@@ -55,6 +55,7 @@ protected void setAllStyles() {
     this.cursorFontColor = theme.getCursorFontColor();
     this.cursorBackgroundColor = theme.getCursorBackgroundColor();
   }
+
   /**
    * Set the theme the styler should use
    *
@@ -82,6 +83,7 @@ public XYStyler setDefaultSeriesRenderStyle(XYSeriesRenderStyle xySeriesRenderSt
     this.xySeriesRenderStyle = xySeriesRenderStyle;
     return this;
   }
+
   // Zoom ///////////////////////////////
 
   public boolean isZoomEnabled() {
@@ -207,6 +209,7 @@ public void setCustomCursorXDataFormattingFunction(
   public Function<Double, String> getCustomCursorYDataFormattingFunction() {
     return customCursorYDataFormattingFunction;
   }
+
   /**
    * Set the custom function for formatting the cursor tooltip based on the series Y-Axis data
    *