fix: bug6902

src/views/ppt_manage/newVersion/components/catalog/pptContent.vue

@@ -171,7 +171,7 @@ export default {
       }
       this.$store.commit('SET_CHART_INFO_MAP',chartInfoMap)
       this.dataLoading.close();
-      $('.ppt-item').css('background-image',`url(${this.pptBgImage})`);
+      $('.ppt-item').css('background-image',`url(${this.firstPage.CurrentBackgroundImg})`);
     },
     async getpptData(){
       const id = this.pptItem.PptId