diff --git a/cmd/vrc_osc_gui/window_windows.go b/cmd/vrc_osc_gui/window_windows.go
index 91631ff..005d0be 100644
--- a/cmd/vrc_osc_gui/window_windows.go
+++ b/cmd/vrc_osc_gui/window_windows.go
@@ -228,8 +228,6 @@ type guiApp struct {
 	tabSettings                   uintptr
 	btnTopMost                    uintptr
 	btnAutoUnmute                 uintptr
-	btnFontDown                   uintptr
-	btnFontUp                     uintptr
 	activeTab                     string
 	topMost                       bool
 	autoUnmuteOnLeave             bool
@@ -586,8 +584,6 @@ func runNativeGUI(initialTab string) error {
 			rightTitle, _ := syscall.UTF16PtrFromString("")
 			topMostTitle, _ := syscall.UTF16PtrFromString("Top most")
 			autoUnmuteTitle, _ := syscall.UTF16PtrFromString("Leave unmute")
-			fontDownTitle, _ := syscall.UTF16PtrFromString("A-")
-			fontUpTitle, _ := syscall.UTF16PtrFromString("A+")
 			browseTitle, _ := syscall.UTF16PtrFromString("参照")
 			saveTitle, _ := syscall.UTF16PtrFromString("保存")
 			toolbarTitle, _ := syscall.UTF16PtrFromString("")
@@ -635,8 +631,6 @@ func runNativeGUI(initialTab string) error {
 			app.settingsPaneHwnd, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(paneClassName)), uintptr(unsafe.Pointer(settingsPaneTitle)), paneStyle, 0, contentTop, windowWidth, settingsPaneHeight, hwnd, idLog+1, hInstance, 0)
 			app.btnTopMost, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(buttonClass)), uintptr(unsafe.Pointer(topMostTitle)), buttonStyle, leftPaneWidth+32, contentTop+86, 140, 30, hwnd, 3005, hInstance, 0)
 			app.btnAutoUnmute, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(buttonClass)), uintptr(unsafe.Pointer(autoUnmuteTitle)), buttonStyle, leftPaneWidth+32, contentTop+132, 180, 30, hwnd, 3008, hInstance, 0)
-			app.btnFontDown, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(buttonClass)), uintptr(unsafe.Pointer(fontDownTitle)), buttonStyle, leftPaneWidth+32, contentTop+178, 52, 30, hwnd, 3006, hInstance, 0)
-			app.btnFontUp, _, _ = createWindowEx.Call(0, uintptr(unsafe.Pointer(buttonClass)), uintptr(unsafe.Pointer(fontUpTitle)), buttonStyle, leftPaneWidth+92, contentTop+178, 52, 30, hwnd, 3007, hInstance, 0)
 			exportDirTitle, _ := syscall.UTF16PtrFromString("")
 			exportDirRect := settingsHistoryExportDirRect()
 			app.settingsExportDirEdit, _, _ = createWindowEx.Call(
@@ -1216,7 +1210,7 @@ func refreshGUI(setWindowText *syscall.LazyProc, app *guiApp, reloadData bool) {
 	if app.settingsPaneHwnd != 0 {
 		showWindowProc.Call(app.settingsPaneHwnd, swHideControl)
 	}
-	for _, hwnd := range []uintptr{app.btnTopMost, app.btnAutoUnmute, app.btnFontDown, app.btnFontUp} {
+	for _, hwnd := range []uintptr{app.btnTopMost, app.btnAutoUnmute} {
 		if hwnd != 0 {
 			showWindowProc.Call(hwnd, swHideControl)
 		}
@@ -1257,7 +1251,7 @@ func refreshSettingsControls(showWindowProc, setWindowPosProc *syscall.LazyProc,
 			return
 		}
 		app.lastSettingsVisible = true
-		for _, hwnd := range []uintptr{app.btnTopMost, app.btnAutoUnmute, app.btnFontDown, app.btnFontUp} {
+		for _, hwnd := range []uintptr{app.btnTopMost, app.btnAutoUnmute} {
 			if hwnd != 0 {
 				showWindowProc.Call(hwnd, swHideControl)
 			}
@@ -1281,7 +1275,7 @@ func refreshSettingsControls(showWindowProc, setWindowPosProc *syscall.LazyProc,
 	if app.settingsPaneHwnd != 0 {
 		showWindowProc.Call(app.settingsPaneHwnd, swHideControl)
 	}
-	for _, hwnd := range []uintptr{app.btnTopMost, app.btnAutoUnmute, app.btnFontDown, app.btnFontUp, app.settingsExportDirEdit, app.settingsExportCustomEdit, app.settingsExportBrowseBtn, app.settingsExportCustomSaveBtn} {
+	for _, hwnd := range []uintptr{app.btnTopMost, app.btnAutoUnmute, app.settingsExportDirEdit, app.settingsExportCustomEdit, app.settingsExportBrowseBtn, app.settingsExportCustomSaveBtn} {
 		if hwnd != 0 {
 			showWindowProc.Call(hwnd, swHideControl)
 		}