diff --git a/Editor/MainComponents/TooltipEditor.cs b/Editor/MainComponents/TooltipEditor.cs
index 1982e426..aa5af106 100644
--- a/Editor/MainComponents/TooltipEditor.cs
+++ b/Editor/MainComponents/TooltipEditor.cs
@@ -11,7 +11,8 @@ namespace XCharts.Editor
             ++EditorGUI.indentLevel;
             PropertyField("m_Type");
             PropertyField("m_Trigger");
-            PropertyField("m_AlwayShow");
+            PropertyField("m_ShowContent");
+            PropertyField("m_AlwayShowContent");
             PropertyField("m_TitleFormatter");
             PropertyField("m_ItemFormatter");
             PropertyField("m_NumericFormatter");
diff --git a/Resources/XCSettings.asset b/Resources/XCSettings.asset
index 00e4a7d1..0695abb2 100644
--- a/Resources/XCSettings.asset
+++ b/Resources/XCSettings.asset
@@ -3,8 +3,9 @@
 --- !u!114 &11400000
 MonoBehaviour:
   m_ObjectHideFlags: 0
-  m_PrefabParentObject: {fileID: 0}
-  m_PrefabInternal: {fileID: 0}
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
   m_GameObject: {fileID: 0}
   m_Enabled: 1
   m_EditorHideFlags: 0
@@ -34,9 +35,8 @@ MonoBehaviour:
   m_VisualMapBorderWidth: 0
   m_SerieLineWidth: 1.8
   m_SerieLineSymbolSize: 5
-  m_SerieLineSymbolSelectedSize: 7
   m_SerieScatterSymbolSize: 20
-  m_SerieScatterSymbolSelectedSize: 30
+  m_SerieSelectedRate: 1.3
   m_SerieCandlestickBorderWidth: 1
   m_EditorShowAllListData: 0
   m_MaxPainter: 10
@@ -53,3 +53,5 @@ MonoBehaviour:
   - {fileID: 11400000, guid: e1dc23a10de1e4c5dbfbaf74c4dfd218, type: 2}
   - {fileID: 0}
   - {fileID: 0}
+  - {fileID: 11400000, guid: 0a4f01779f9b24f48846f968fe013a57, type: 2}
+  - {fileID: 11400000, guid: 4d093c897dc514d12aca94b6b17cb4fa, type: 2}
diff --git a/Runtime/Component/Axis/AxisHandler.cs b/Runtime/Component/Axis/AxisHandler.cs
index 808214d8..15a353f2 100644
--- a/Runtime/Component/Axis/AxisHandler.cs
+++ b/Runtime/Component/Axis/AxisHandler.cs
@@ -31,19 +31,18 @@ namespace XCharts
             var grid = chart.GetChartComponent<GridCoord>(axis.gridIndex);
             if (grid == null)
                 return;
-
             if (!grid.context.isPointerEnter)
             {
                 axis.context.pointerValue = double.PositiveInfinity;
             }
             else
             {
+                var lastPointerValue = axis.context.pointerValue;
                 if (axis.IsCategory())
                 {
                     var dataZoom = chart.GetDataZoomOfAxis(axis);
                     var dataCount = chart.series.Count > 0 ? chart.series[0].GetDataList(dataZoom).Count : 0;
                     var local = chart.pointerPos;
-
                     for (int j = 0; j < axis.GetDataCount(dataZoom); j++)
                     {
                         if (axis is YAxis)
@@ -55,6 +54,11 @@ namespace XCharts
                             {
                                 axis.context.pointerValue = j;
                                 axis.context.pointerLabelPosition = axis.GetLabelObjectPosition(j);
+                                if (j != lastPointerValue)
+                                {
+                                    if (chart.onUpdateAxisPointer != null)
+                                        chart.onUpdateAxisPointer(axis, j);
+                                }
                                 break;
                             }
                         }
@@ -67,6 +71,11 @@ namespace XCharts
                             {
                                 axis.context.pointerValue = j;
                                 axis.context.pointerLabelPosition = axis.GetLabelObjectPosition(j);
+                                if (j != lastPointerValue)
+                                {
+                                    if (chart.onUpdateAxisPointer != null)
+                                        chart.onUpdateAxisPointer(axis, j);
+                                }
                                 break;
                             }
                         }
@@ -85,6 +94,11 @@ namespace XCharts
                         var labelX = axis.GetLabelObjectPosition(0).x;
                         axis.context.pointerValue = yValue;
                         axis.context.pointerLabelPosition = new Vector3(labelX, chart.pointerPos.y);
+                        if (yValue != lastPointerValue)
+                        {
+                            if (chart.onUpdateAxisPointer != null)
+                                chart.onUpdateAxisPointer(axis, yValue);
+                        }
                     }
                     else
                     {
@@ -97,6 +111,11 @@ namespace XCharts
                         var labelY = axis.GetLabelObjectPosition(0).y;
                         axis.context.pointerValue = xValue;
                         axis.context.pointerLabelPosition = new Vector3(chart.pointerPos.x, labelY);
+                        if (xValue != lastPointerValue)
+                        {
+                            if (chart.onUpdateAxisPointer != null)
+                                chart.onUpdateAxisPointer(axis, xValue);
+                        }
                     }
                 }
             }
diff --git a/Runtime/Component/Debug/DebugInfo.cs b/Runtime/Component/Debug/DebugInfo.cs
index dbdf0dd7..4e74e9ba 100644
--- a/Runtime/Component/Debug/DebugInfo.cs
+++ b/Runtime/Component/Debug/DebugInfo.cs
@@ -3,6 +3,7 @@ using UnityEngine;
 using System;
 using System.Collections.Generic;
 using System.Text;
+using UnityEngine.UI;
 
 namespace XCharts
 {
diff --git a/Runtime/Component/Tooltip/Tooltip.cs b/Runtime/Component/Tooltip/Tooltip.cs
index c8fd54e1..25ad3d57 100644
--- a/Runtime/Component/Tooltip/Tooltip.cs
+++ b/Runtime/Component/Tooltip/Tooltip.cs
@@ -77,7 +77,8 @@ namespace XCharts
         [SerializeField] private int m_PaddingTopBottom = 10;
         [SerializeField] private bool m_IgnoreDataShow = false;
         [SerializeField] private string m_IgnoreDataDefaultContent = "-";
-        [SerializeField] private bool m_AlwayShow = false;
+        [SerializeField] private bool m_ShowContent = true;
+        [SerializeField] private bool m_AlwayShowContent = false;
         [SerializeField] private Vector2 m_Offset = new Vector2(18f, -25f);
         [SerializeField] private Sprite m_BackgroundImage;
         [SerializeField] private Color m_BackgroundColor;
@@ -241,9 +242,15 @@ namespace XCharts
         public Color backgroundColor { get { return m_BackgroundColor; } set { m_BackgroundColor = value; SetComponentDirty(); } }
         /// <summary>
         /// Whether to trigger after always display.
-        /// 是否触发后一直显示。
+        /// 是否触发后一直显示提示框浮层。
         /// </summary>
-        public bool alwayShow { get { return m_AlwayShow; } set { m_AlwayShow = value; } }
+        public bool alwayShowContent { get { return m_AlwayShowContent; } set { m_AlwayShowContent = value; } }
+        /// <summary>
+        /// Whether to show the tooltip floating layer, whose default value is true. 
+        /// It should be configurated to be false, if you only need tooltip to trigger the event or show the axisPointer without content.
+        /// 是否显示提示框浮层，默认显示。只需tooltip触发事件或显示axisPointer而不需要显示内容时可配置该项为false。
+        /// </summary>
+        public bool showContent { get { return m_ShowContent; } set { m_ShowContent = value; } }
         /// <summary>
         /// The position offset of tooltip relative to the mouse position.
         /// 提示框相对于鼠标位置的偏移。
@@ -395,7 +402,7 @@ namespace XCharts
         {
             if (gameObject && gameObject.activeInHierarchy != flag)
             {
-                gameObject.SetActive(alwayShow ? true : flag);
+                gameObject.SetActive(alwayShowContent ? true : flag);
             }
             SetContentActive(flag);
         }
@@ -422,7 +429,8 @@ namespace XCharts
         {
             if (view == null)
                 return;
-            view.SetActive(alwayShow ? true : flag);
+            
+            view.SetActive(alwayShowContent ? true : flag);
         }
 
         /// <summary>
diff --git a/Runtime/Component/Tooltip/TooltipHandler.cs b/Runtime/Component/Tooltip/TooltipHandler.cs
index 5874b9b1..429a350e 100644
--- a/Runtime/Component/Tooltip/TooltipHandler.cs
+++ b/Runtime/Component/Tooltip/TooltipHandler.cs
@@ -478,7 +478,7 @@ namespace XCharts
                             Vector2 sp = new Vector2(pX, grid.context.y);
                             Vector2 ep = new Vector2(pX, grid.context.y + grid.context.height);
                             var lineColor = TooltipHelper.GetLineColor(tooltip, chart.theme);
-                            if (xAxis.IsCategory())
+                            if (xAxis.IsCategory() && tooltip.type == Tooltip.Type.Corss)
                             {
                                 float tooltipSplitWid = splitWidth < 1 ? 1 : splitWidth;
                                 pX = (float)(grid.context.x + splitWidth * xAxis.context.pointerValue -
@@ -542,7 +542,7 @@ namespace XCharts
                             Vector2 sp = new Vector2(grid.context.x, pY);
                             Vector2 ep = new Vector2(grid.context.x + grid.context.width, pY);
                             var lineColor = TooltipHelper.GetLineColor(tooltip, chart.theme);
-                            if (yAxis.IsCategory())
+                            if (yAxis.IsCategory() && tooltip.type == Tooltip.Type.Corss)
                             {
                                 float tooltipSplitWid = splitWidth < 1 ? 1 : splitWidth;
                                 float pX = grid.context.x + grid.context.width;
diff --git a/Runtime/Component/Tooltip/TooltipView.cs b/Runtime/Component/Tooltip/TooltipView.cs
index b62468fa..60e5c05d 100644
--- a/Runtime/Component/Tooltip/TooltipView.cs
+++ b/Runtime/Component/Tooltip/TooltipView.cs
@@ -57,8 +57,8 @@ namespace XCharts
 
         public void SetActive(bool flag)
         {
-            m_Active = flag;
-            ChartHelper.SetActive(gameObject, flag);
+            m_Active = flag && tooltip.showContent;
+            ChartHelper.SetActive(gameObject, m_Active);
         }
 
         public void Refresh()
diff --git a/Runtime/Helper/FormatterHelper.cs b/Runtime/Helper/FormatterHelper.cs
index adb4a0c0..9cc4b796 100644
--- a/Runtime/Helper/FormatterHelper.cs
+++ b/Runtime/Helper/FormatterHelper.cs
@@ -238,18 +238,14 @@ namespace XCharts
                 {
                     content = content.Replace(old, dataName);
                 }
-                else if (p == 'c' || p == 'C' || p == 'd' || p == 'D')
+                else if (p == 'd' || p == 'D')
                 {
-                    var isPercent = p == 'd' || p == 'D';
-                    if (isPercent)
-                    {
-                        if (total != 0)
-                            content = content.Replace(old, ChartCached.FloatToStr(value / total * 100, numericFormatter));
-                    }
-                    else
-                    {
-                        content = content.Replace(old, ChartCached.FloatToStr(value, numericFormatter));
-                    }
+                    var rate = total == 0 ? 0 : value / total * 100;
+                    content = content.Replace(old, ChartCached.FloatToStr(rate, numericFormatter));
+                }
+                else if (p == 'c' || p == 'C')
+                {
+                    content = content.Replace(old, ChartCached.FloatToStr(value, numericFormatter));
                 }
             }
             content = TrimAndReplaceLine(content);
diff --git a/Runtime/Internal/BaseChart.API.cs b/Runtime/Internal/BaseChart.API.cs
index 1ca1b59f..b10fb787 100644
--- a/Runtime/Internal/BaseChart.API.cs
+++ b/Runtime/Internal/BaseChart.API.cs
@@ -96,6 +96,10 @@ namespace XCharts
         /// </summary>
         public Action<PointerEventData, int> onPointerClickBar { set { m_OnPointerClickBar = value; m_ForceOpenRaycastTarget = true; } }
         /// <summary>
+        /// 坐标轴变更数据索引时回调。参数：axis, dataIndex/dataValue
+        /// </summary>
+        public Action<Axis, double> onUpdateAxisPointer { set { m_OnUpdateAxisPointer = value; } get { return m_OnUpdateAxisPointer; } }
+        /// <summary>
         /// Redraw chart in next frame.
         /// 在下一帧刷新图表。
         /// </summary>
diff --git a/Runtime/Internal/BaseChart.Component.cs b/Runtime/Internal/BaseChart.Component.cs
index 49e76e66..770c6fe4 100644
--- a/Runtime/Internal/BaseChart.Component.cs
+++ b/Runtime/Internal/BaseChart.Component.cs
@@ -55,12 +55,12 @@ namespace XCharts
         {
             if (!CanAddChartComponent(type))
             {
-                throw new InvalidOperationException("DisallowMultipleComponent:" + type.Name);
+                throw new InvalidOperationException("CanAddChartComponent:" + type.Name);
             }
             CheckAddRequireChartComponent(type);
             var component = Activator.CreateInstance(type) as MainComponent;
             if (component == null)
-                throw new InvalidOperationException("DisallowMultipleComponent:" + type.Name);
+                throw new InvalidOperationException("CanAddChartComponent:" + type.Name);
             component.SetDefaultValue();
             if (component is IUpdateRuntimeData)
                 (component as IUpdateRuntimeData).UpdateRuntimeData(chartX, chartY, chartWidth, chartHeight);
diff --git a/Runtime/Internal/BaseChart.Serie.cs b/Runtime/Internal/BaseChart.Serie.cs
index 0fb1d938..9d7cb25c 100644
--- a/Runtime/Internal/BaseChart.Serie.cs
+++ b/Runtime/Internal/BaseChart.Serie.cs
@@ -484,6 +484,26 @@ namespace XCharts
             return false;
         }
 
+        public double GetData(string serieName, int dataIndex, int dimension = 1)
+        {
+            var serie = GetSerie(serieName);
+            if (serie != null)
+            {
+                return serie.GetData(dataIndex, dimension);
+            }
+            return 0;
+        }
+
+        public double GetData(int serieIndex, int dataIndex, int dimension = 1)
+        {
+            var serie = GetSerie(serieIndex);
+            if (serie != null)
+            {
+                return serie.GetData(dataIndex, dimension);
+            }
+            return 0;
+        }
+
         public int GetAllSerieDataCount()
         {
             var total = 0;
diff --git a/Runtime/Internal/BaseChart.cs b/Runtime/Internal/BaseChart.cs
index d8f53352..1376a2d4 100644
--- a/Runtime/Internal/BaseChart.cs
+++ b/Runtime/Internal/BaseChart.cs
@@ -87,6 +87,7 @@ namespace XCharts
         protected Action<VertexHelper, Serie> m_OnCustomDrawSerieAfterCallback;
         protected Action<PointerEventData, int, int> m_OnPointerClickPie;
         protected Action<PointerEventData, int> m_OnPointerClickBar;
+        protected Action<Axis, double> m_OnUpdateAxisPointer;
 
         internal bool m_CheckAnimation = false;
         internal protected List<string> m_LegendRealShowName = new List<string>();
@@ -309,7 +310,7 @@ namespace XCharts
                 painter.onPopulateMesh = OnDrawPainterSerie;
                 painter.SetActive(false, m_DebugMode);
                 painter.material = settings.seriePainterMaterial;
-                painter.transform.SetSiblingIndex(i + 1);
+                painter.transform.SetSiblingIndex(index + 1);
                 m_PainterList.Add(painter);
             }
             m_PainterTop = ChartHelper.AddPainterObject("painter_t", transform, m_GraphMinAnchor,
@@ -318,7 +319,7 @@ namespace XCharts
             m_PainterTop.onPopulateMesh = OnDrawPainterTop;
             m_PainterTop.SetActive(true, m_DebugMode);
             m_PainterTop.material = settings.topPainterMaterial;
-            m_PainterTop.transform.SetSiblingIndex(settings.maxPainter);
+            m_PainterTop.transform.SetSiblingIndex(settings.maxPainter + 1);
         }
 
         internal void InitComponentHandlers()
diff --git a/Runtime/Internal/XChartsMgr.cs b/Runtime/Internal/XChartsMgr.cs
index d6e8093a..23123e64 100644
--- a/Runtime/Internal/XChartsMgr.cs
+++ b/Runtime/Internal/XChartsMgr.cs
@@ -21,7 +21,7 @@ namespace XCharts
     public static class XChartsMgr
     {
         public static readonly string version = "3.0.0";
-        public static readonly int versionDate = 20210724;
+        public static readonly int versionDate = 20220101;
         public static string fullVersion { get { return version + "-" + versionDate; } }
 
         internal static List<BaseChart> chartList = new List<BaseChart>();
diff --git a/Runtime/Serie/SerieContext.cs b/Runtime/Serie/SerieContext.cs
index 50299245..07921cb0 100644
--- a/Runtime/Serie/SerieContext.cs
+++ b/Runtime/Serie/SerieContext.cs
@@ -92,11 +92,11 @@ namespace XCharts
         /// <summary>
         /// theme的颜色索引
         /// </summary>
-        internal int colorIndex;
+        public int colorIndex;
         /// <summary>
         /// 绘制点
         /// </summary>
-        internal List<PointInfo> drawPoints = new List<PointInfo>();
+        public List<PointInfo> drawPoints = new List<PointInfo>();
         public SerieParams param = new SerieParams();
     }
 }
\ No newline at end of file
diff --git a/Runtime/Serie/SerieHandler.cs b/Runtime/Serie/SerieHandler.cs
index 9b793d0c..6e3322e6 100644
--- a/Runtime/Serie/SerieHandler.cs
+++ b/Runtime/Serie/SerieHandler.cs
@@ -294,7 +294,6 @@ namespace XCharts
 
                 serieData.labelObject.SetPosition(serieData.context.position);
                 serieData.labelObject.UpdateIcon(iconStyle);
-
                 if (serie.show
                     && currLabel != null
                     && (currLabel.show || isHighlight)
@@ -414,7 +413,7 @@ namespace XCharts
             param.serieData = serieData;
             param.value = serieData.GetData(param.dimension);
             param.total = SerieHelper.GetMaxData(serie, dimension);
-            param.color = chart.theme.GetColor(dataIndex);
+            param.color = chart.GetLegendRealShowNameColor(serieData.name);
             param.marker = SerieHelper.GetItemMarker(serie, serieData, marker);
             param.itemFormatter = itemFormatter;
             param.numericFormatter = SerieHelper.GetNumericFormatter(serie, serieData, numericFormatter);
diff --git a/Runtime/Theme/ThemeStyle.cs b/Runtime/Theme/ThemeStyle.cs
index e6032cbd..a498a099 100644
--- a/Runtime/Theme/ThemeStyle.cs
+++ b/Runtime/Theme/ThemeStyle.cs
@@ -41,6 +41,7 @@ namespace XCharts
     {
         [SerializeField] private Theme m_SharedTheme;
         [SerializeField] private bool m_EnableCustomTheme;
+        [SerializeField] private Font m_CustomFont;
         [SerializeField] private Color32 m_CustomBackgroundColor;
 #if UNITY_2020_2
         [NonReorderable]