diff --git a/designer-base/src/main/java/com/fr/design/utils/ColorUtils.java b/designer-base/src/main/java/com/fr/design/utils/ColorUtils.java
index 992970043d..f189ccc300 100644
--- a/designer-base/src/main/java/com/fr/design/utils/ColorUtils.java
+++ b/designer-base/src/main/java/com/fr/design/utils/ColorUtils.java
@@ -28,6 +28,13 @@ public class ColorUtils {
         }
     }
     
+    /**
+     * 递归的同步颜色，如何组件的背景颜色等于默认颜色的话，变更为 replaceColor
+     *
+     * @param component 组件
+     * @param replaceColor 替换颜色
+     * @param defaultColor 默认颜色
+     */
     public static void syncBackgroundIfAbsent(Component component, Color replaceColor, Color defaultColor) {
     
         if (component.getBackground() != defaultColor) {
@@ -43,6 +50,11 @@ public class ColorUtils {
         }
     }
     
+    /**
+     * 使背景透明
+     *
+     * @param component 组件
+     */
     public static void transparentBackground(Component component) {
         
         syncBackgroundIfAbsent(component, new Color(0,0,0,0), ThemeUtils.BACK_COLOR);
diff --git a/designer-base/src/main/java/com/fr/startup/ui/StartupPageUtil.java b/designer-base/src/main/java/com/fr/startup/ui/StartupPageUtil.java
index f7cfa87267..153aa4ce0e 100644
--- a/designer-base/src/main/java/com/fr/startup/ui/StartupPageUtil.java
+++ b/designer-base/src/main/java/com/fr/startup/ui/StartupPageUtil.java
@@ -71,6 +71,11 @@ public class StartupPageUtil {
         }
     }
     
+    /**
+     * 透明的背景，需要从根节点重绘
+     *
+     * @param component 组件
+     */
     public static void repaintAll(JComponent component) {
     
         JRootPane rootPane = component.getRootPane();