全文设置后主题色，新加组件序号背景色初始化为主题色

src/views/book/courseware/create/components/common/ModuleMixin.js

@@ -96,15 +96,19 @@ const mixin = {
             this.data = JSON.parse(content);
           } else if ('view_pinyin' in this.data.property) {
             // 初始化时，如果有 view_pinyin 则根据全文设置配置设 view_pinyin 和 pinyin_position
-            const bookUnifiedAttr = this.getBookUnifiedAttr();   
-            
+            const bookUnifiedAttr = this.getBookUnifiedAttr();
+
             this.data.property.view_pinyin = bookUnifiedAttr?.view_pinyin ?? 'false';
             this.data.property.pinyin_position = bookUnifiedAttr?.pinyin_position ?? 'top';
             if ('frame_color' in this.data.property) {
               // 框颜色初始化为主题色
               this.data.property.frame_color = bookUnifiedAttr?.topic_color ?? '#F13232';
             }
-          } 
+            if ('sn_background_color' in this.data.property) {
+              // 序号背景色
+              this.data.property.sn_background_color = bookUnifiedAttr?.topic_color ?? '#EA3232';
+            }
+          }
           this.property.isGetContent = true;
 
           this.$watch(