diff --git a/src/ExcelSettingTab.ts b/src/ExcelSettingTab.ts
index 1550241..164b55a 100644
--- a/src/ExcelSettingTab.ts
+++ b/src/ExcelSettingTab.ts
@@ -27,6 +27,7 @@ export class ExcelSettingTab extends PluginSettingTab {
                 .setValue(this.plugin.settings.theme)
                 .onChange(async (value) => {
                     this.plugin.settings.theme = value
+                    this.plugin.saveSettings()
                 }),
             );
 
diff --git a/src/ExcelView.ts b/src/ExcelView.ts
index d3bbb12..91ac7f0 100644
--- a/src/ExcelView.ts
+++ b/src/ExcelView.ts
@@ -260,6 +260,11 @@ export class ExcelView extends TextFileView {
 				const data = this.sheet.getData();
 				// console.log('onRenameSheet', data)
 				this.saveData(JSON.stringify(data));
+			})
+			.onDeleteSheet(() => {
+				const data = this.sheet.getData();
+				// console.log('onDeleteSheet', data)
+				this.saveData(JSON.stringify(data));
 			});
 
 		this.sheet.on("cells-selected", (sheetData, { sri, sci, eri, eci }) => {