diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1451d2fd..c8ebd3b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -53,6 +53,8 @@
 
 ## master
 
+* (2022.06.14) 优化`Background`，参数`hideThemeBackgroundColor`重命名为`autoColor`
+* (2022.06.10) 增加`Legend`的`AxisLabel`支持`autoColor`
 * (2022.06.08) 修复`Axis`的`AxisLabel`在设置不显示时还显示首尾两个`label`的问题
 
 ## v3.0.0
diff --git a/Editor/MainComponents/BackgroundEditor.cs b/Editor/MainComponents/BackgroundEditor.cs
index 33c84f3c..25c867fa 100644
--- a/Editor/MainComponents/BackgroundEditor.cs
+++ b/Editor/MainComponents/BackgroundEditor.cs
@@ -13,7 +13,7 @@ namespace XCharts.Editor
             PropertyField("m_Image");
             PropertyField("m_ImageType");
             PropertyField("m_ImageColor");
-            PropertyField("m_HideThemeBackgroundColor");
+            PropertyField("m_AutoColor");
             --EditorGUI.indentLevel;
         }
     }
diff --git a/Runtime/Component/Background/Background.cs b/Runtime/Component/Background/Background.cs
index 5d963389..68f212ce 100644
--- a/Runtime/Component/Background/Background.cs
+++ b/Runtime/Component/Background/Background.cs
@@ -18,7 +18,7 @@ namespace XCharts.Runtime
         [SerializeField] private Sprite m_Image;
         [SerializeField] private Image.Type m_ImageType;
         [SerializeField] private Color m_ImageColor = Color.white;
-        [SerializeField] private bool m_HideThemeBackgroundColor = true;
+        [SerializeField] private bool m_AutoColor = true;
 
         /// <summary>
         /// Whether to enable the background component.
@@ -59,13 +59,13 @@ namespace XCharts.Runtime
         }
 
         /// <summary>
-        /// Whether to hide the background color set in the theme when the background component is on.
-        /// |当background组件开启时，是否隐藏主题中设置的背景色。
+        /// Whether to use theme background color for component color when the background component is on.
+        /// |当background组件开启时，是否自动使用主题背景色作为backgrounnd组件的颜色。当设置为false时，用imageColor作为颜色。
         /// </summary>
-        public bool hideThemeBackgroundColor
+        public bool autoColor
         {
-            get { return m_HideThemeBackgroundColor; }
-            set { if (PropertyUtil.SetStruct(ref m_HideThemeBackgroundColor, value)) SetVerticesDirty(); }
+            get { return m_AutoColor; }
+            set { if (PropertyUtil.SetStruct(ref m_AutoColor, value)) SetVerticesDirty(); }
         }
 
         public override void SetDefaultValue()
@@ -74,7 +74,7 @@ namespace XCharts.Runtime
             m_Image = null;
             m_ImageType = Image.Type.Sliced;
             m_ImageColor = Color.white;
-            m_HideThemeBackgroundColor = true;
+            m_AutoColor = true;
         }
     }
 }
\ No newline at end of file
diff --git a/Runtime/Component/Background/BackgroundHandler.cs b/Runtime/Component/Background/BackgroundHandler.cs
index 54e7ead1..e99535c0 100644
--- a/Runtime/Component/Background/BackgroundHandler.cs
+++ b/Runtime/Component/Background/BackgroundHandler.cs
@@ -24,7 +24,7 @@ namespace XCharts.Runtime
                     chart.chartMaxAnchor, chart.chartPivot, chart.chartSizeDelta);
                 backgroundImage.sprite = component.image;
                 backgroundImage.type = component.imageType;
-                backgroundImage.color = component.imageColor;
+                backgroundImage.color = chart.theme.GetBackgroundColor(component);
 
                 backgroundObj.transform.SetSiblingIndex(0);
                 backgroundObj.SetActive(component.show);
@@ -32,10 +32,18 @@ namespace XCharts.Runtime
             component.refreshComponent();
         }
 
+        public override void Update()
+        {
+            if (component.gameObject != null && component.gameObject.transform.GetSiblingIndex() != 0)
+                component.gameObject.transform.SetSiblingIndex(0);
+        }
+
         public override void DrawBase(VertexHelper vh)
         {
             if (!component.show)
                 return;
+            if (component.image != null)
+                return;
 
             var p1 = new Vector3(chart.chartX, chart.chartY + chart.chartHeight);
             var p2 = new Vector3(chart.chartX + chart.chartWidth, chart.chartY + chart.chartHeight);
diff --git a/Runtime/Theme/ThemeStyle.cs b/Runtime/Theme/ThemeStyle.cs
index 8c3f2ab7..aaa616e7 100644
--- a/Runtime/Theme/ThemeStyle.cs
+++ b/Runtime/Theme/ThemeStyle.cs
@@ -156,7 +156,7 @@ namespace XCharts.Runtime
 
         public Color32 GetBackgroundColor(Background background)
         {
-            if (background != null && background.show && background.hideThemeBackgroundColor)
+            if (background != null && background.show && !background.autoColor)
                 return background.imageColor;
             else
                 return backgroundColor;