diff --git a/CasioEmuMsvc/Gui/AddressWindow.cpp b/CasioEmuMsvc/Gui/AddressWindow.cpp
index 7116caf..d3294bd 100644
--- a/CasioEmuMsvc/Gui/AddressWindow.cpp
+++ b/CasioEmuMsvc/Gui/AddressWindow.cpp
@@ -15,7 +15,7 @@ class AddressWindow : public UIWindow {
 	}
 
 	void RenderCore() override {
-		ImGui::Text("%s", "AddressWindow.Header"_lc);
+		ImGui::TextUnformatted("AddressWindow.Header"_lc);
 		ImGui::Separator();
 
 		RenderAddressTable();
@@ -65,7 +65,7 @@ class AddressWindow : public UIWindow {
 	}
 
 	void RenderAddAddressControls() {
-		ImGui::Text("%s", "AddressWindow.Add"_lc);
+		ImGui::TextUnformatted("AddressWindow.Add"_lc);
 
 		ImGui::InputScalar("Address", ImGuiDataType_U32, &newAddress, 0, 0, "%x");
 		// ImGui::InputScalar("Value", ImGuiDataType_U8, &newValue);
diff --git a/CasioEmuMsvc/Gui/CallAnalysis.cpp b/CasioEmuMsvc/Gui/CallAnalysis.cpp
index 078c590..dd26986 100644
--- a/CasioEmuMsvc/Gui/CallAnalysis.cpp
+++ b/CasioEmuMsvc/Gui/CallAnalysis.cpp
@@ -86,7 +86,7 @@ struct CallAnalysis : public UIWindow {
 				for (auto& func : funcs) {
 					ImGui::TableNextRow();
 					ImGui::TableNextColumn();
-					ImGui::Text("%s", lookup_symbol(func.first).c_str());
+					ImGui::TextUnformatted(lookup_symbol(func.first).c_str());
 					ImGui::TableNextColumn();
 					ImGui::Text("%d", (int)func.second.size());
 					ImGui::TableNextColumn();
@@ -155,7 +155,7 @@ struct CallAnalysis : public UIWindow {
 				funcs.clear();
 			}
 			ImGui::Separator();
-			ImGui::Text("%s", "CallAnalysis.Filters"_lc);
+			ImGui::TextUnformatted("CallAnalysis.Filters"_lc);
 			ImGui::Checkbox("CallAnalysis.CalleeFilter"_lc,
 				&check_callee);
 			ImGui::SameLine();
diff --git a/CasioEmuMsvc/Gui/CodeViewer.cpp b/CasioEmuMsvc/Gui/CodeViewer.cpp
index b6214e9..f159b16 100644
--- a/CasioEmuMsvc/Gui/CodeViewer.cpp
+++ b/CasioEmuMsvc/Gui/CodeViewer.cpp
@@ -305,7 +305,7 @@ void CodeViewer::RenderCore() {
 	int w = ImGui::CalcTextSize("F").x;
 	if (!is_loaded) {
 		ImGui::SetCursorPos(ImVec2(w * 2, h * 5));
-		ImGui::Text("%s", "CodeViewer.Loading"_lc);
+		ImGui::TextUnformatted("CodeViewer.Loading"_lc);
 		return;
 	}
 	ImVec2 sz;
@@ -338,7 +338,7 @@ void CodeViewer::RenderCore() {
 	ImGui::EndChild();
 	ImGui::SameLine();
 	ImGui::Separator();
-	ImGui::Text("%s", "CodeViewer.Goto"_lc);
+	ImGui::TextUnformatted("CodeViewer.Goto"_lc);
 	ImGui::SameLine();
 	ImGui::SetNextItemWidth(ImGui::CalcTextSize("000000").x);
 	ImGui::InputText("##input", adrbuf, 8);
diff --git a/CasioEmuMsvc/Gui/Injector.cpp b/CasioEmuMsvc/Gui/Injector.cpp
index 03ed6b9..a518327 100644
--- a/CasioEmuMsvc/Gui/Injector.cpp
+++ b/CasioEmuMsvc/Gui/Injector.cpp
@@ -181,7 +181,7 @@ void Injector::RenderInjectorTab(InjectorData& inj, int index, bool& show_info,
         return false;
     };
 
-    ImGui::Text("%s", "Rop.InjectAddr"_lc);
+    ImGui::TextUnformatted("Rop.InjectAddr"_lc);
     ImGui::SameLine();
     ImGui::SetNextItemWidth(80);
     ImGui::InputText(("##addr" + std::to_string(index)).c_str(), inj.addr, 10);
@@ -252,7 +252,7 @@ void Injector::RenderCore() {
 
     if (ImGui::BeginTabBar("Rop.TabBar"_lc)) {
         if (ImGui::BeginTabItem("Rop.XAnMode"_lc)) {
-            ImGui::Text("%s", "Rop.InputSize"_lc);
+            ImGui::TextUnformatted("Rop.InputSize"_lc);
             ImGui::SameLine();
             ImGui::SetNextItemWidth(80);
             ImGui::InputText("##off", buf, 9);
@@ -336,7 +336,7 @@ void Injector::RenderCore() {
     }
 
     if (ImGui::BeginPopupModal("Rop.InfoPopup"_lc, nullptr, ImGuiWindowFlags_AlwaysAutoResize)) {
-        ImGui::Text("%s", info_msg.c_str());
+        ImGui::TextUnformatted(info_msg.c_str());
         if (ImGui::Button("Button.Positive"_lc)) {
             show_info = false;
             ImGui::CloseCurrentPopup();
diff --git a/CasioEmuMsvc/Gui/LabelViewer.cpp b/CasioEmuMsvc/Gui/LabelViewer.cpp
index 1154be1..cf470df 100644
--- a/CasioEmuMsvc/Gui/LabelViewer.cpp
+++ b/CasioEmuMsvc/Gui/LabelViewer.cpp
@@ -6,7 +6,7 @@
 #include "stringhelper.h"
 
 void LabelViewer::RenderCore() {
-	ImGui::Text("%s", "Label.GeneralHeader"_lc);
+	ImGui::TextUnformatted("Label.GeneralHeader"_lc);
 	ImGui::Separator();
 	auto labels = casioemu::GetCommonMemLabels(m_emu->hardware_id);
 	std::sort(labels.begin(), labels.end());
@@ -27,7 +27,7 @@ void LabelViewer::RenderCore() {
 		ImGui::TextUnformatted(desc.c_str());
 		ImGui::Separator();
 	}
-	ImGui::Text("%s", "Label.SfrsHeader"_lc);
+	ImGui::TextUnformatted("Label.SfrsHeader"_lc);
 	ImGui::Separator();
 	auto regs = me_mmu->GetRegions();
 	std::sort(regs.begin(), regs.end(), [](casioemu::MMURegion* a, casioemu::MMURegion* b) { return a->base < b->base; });
diff --git a/CasioEmuMsvc/Gui/MemBreakPoint.cpp b/CasioEmuMsvc/Gui/MemBreakPoint.cpp
index 4b7ff8a..e3d7cdc 100644
--- a/CasioEmuMsvc/Gui/MemBreakPoint.cpp
+++ b/CasioEmuMsvc/Gui/MemBreakPoint.cpp
@@ -30,7 +30,7 @@ void MemBreakPoint::DrawContent() {
 			if (ImGui::BeginPopupContextItem()) {
 				selected = i;
 
-                ImGui::Text("%s", "MemBP.BPType"_lc);
+                ImGui::TextUnformatted("MemBP.BPType"_lc);
 				if (ImGui::Button("HexEditors.ContextMenu.MonitorRead"_lc)) {
 					target_addr = i;
 					data.enableWrite = 0;
diff --git a/CasioEmuMsvc/Gui/Theme.cpp b/CasioEmuMsvc/Gui/Theme.cpp
index c2a4e6f..637ddd2 100644
--- a/CasioEmuMsvc/Gui/Theme.cpp
+++ b/CasioEmuMsvc/Gui/Theme.cpp
@@ -9,26 +9,34 @@ struct ThemeSettings {
     bool isDarkMode = true;
     char language[30] = "";
     float scale = 1.0f;
+
+    void Write(std::ostream& stm) const {
+        Binary::Write(stm, isDarkMode);
+        stm.write(language, sizeof(language));
+        Binary::Write(stm, scale);
+    }
+
+    void Read(std::istream& stm) {
+        Binary::Read(stm, isDarkMode);
+        stm.read(language, sizeof(language));
+        Binary::Read(stm, scale);
+    }
 };
 
 static ThemeSettings g_settings;
 
 void SaveThemeSettings() {
-    std::ofstream file("./theme.txt");
+    std::ofstream file("./theme.bin", std::ios::binary);
     if (file.is_open()) {
-        file << g_settings.isDarkMode << std::endl;
-        file << g_settings.language << std::endl;
-        file << g_settings.scale << std::endl;
+        Binary::Write(file, g_settings);
         file.close();
     }
 }
 
 void LoadThemeSettings() {
-    std::ifstream file("./theme.txt");
+    std::ifstream file("./theme.bin", std::ios::binary);
     if (file.is_open()) {
-        file >> g_settings.isDarkMode;
-        file >> g_settings.language;
-        file >> g_settings.scale;
+        Binary::Read(file, g_settings);
         file.close();
 
         if (g_settings.isDarkMode) {
diff --git a/CasioEmuMsvc/Gui/Theme.h b/CasioEmuMsvc/Gui/Theme.h
index f8f6293..a54965e 100644
--- a/CasioEmuMsvc/Gui/Theme.h
+++ b/CasioEmuMsvc/Gui/Theme.h
@@ -1,6 +1,8 @@
 #pragma once
 #include <Ui.hpp>
+#include "Binary.h"
+
 UIWindow* MakeThemeWindow();
 
 void SaveThemeSettings();
-void LoadThemeSettings();
+void LoadThemeSettings();
\ No newline at end of file
diff --git a/CasioEmuMsvc/Gui/VariableWindow.cpp b/CasioEmuMsvc/Gui/VariableWindow.cpp
index 1ef430b..1f1e319 100644
--- a/CasioEmuMsvc/Gui/VariableWindow.cpp
+++ b/CasioEmuMsvc/Gui/VariableWindow.cpp
@@ -30,14 +30,14 @@ void VariableWindow::RenderCore() {
 	static bool showhex = false;
 	static bool showimg_auto = true;
 	static bool showimg_f = false;
-	ImGui::Text("%s", "VarWindow.Variable"_lc);
+	ImGui::TextUnformatted("VarWindow.Variable"_lc);
 	ImGui::SameLine(90);
-	ImGui::Text("%s", "VarWindow.ReP"_lc);
+	ImGui::TextUnformatted("VarWindow.ReP"_lc);
 	bool is_in_im = (*(base_addr + casioemu::GetModeOffset(m_emu->hardware_id)) & 0xFF) == 0xC4;
 	bool s_im = showimg_f ? 1 : (showimg_auto ? is_in_im : 0);
 	if (s_im) {
 		ImGui::SameLine(320);
-		ImGui::Text("%s", "VarWindow.ImP"_lc);
+		ImGui::TextUnformatted("VarWindow.ImP"_lc);
 	}
 	for (const auto& v : vars) {
 		if (is_in_im && !strcmp(v.Name, "PreAns"))
diff --git a/CasioEmuMsvc/Gui/WatchWindow.cpp b/CasioEmuMsvc/Gui/WatchWindow.cpp
index fc5adb1..325a956 100644
--- a/CasioEmuMsvc/Gui/WatchWindow.cpp
+++ b/CasioEmuMsvc/Gui/WatchWindow.cpp
@@ -238,7 +238,7 @@ void WatchWindow::RenderCore() {
 	}
 	ImGui::EndChild();
 	ImGui::BeginChild("##stack_view");
-	ImGui::Text("%s", "WatchWindow.StackMemViewRange"_lc);
+	ImGui::TextUnformatted("WatchWindow.StackMemViewRange"_lc);
 	ImGui::SameLine();
 	ImGui::SliderInt("##range", &range, 64, 2048);
 	uint16_t offset = chipset.cpu.reg_sp & 0xffff;
diff --git a/CasioEmuMsvc/StartupUi/StartupUi.cpp b/CasioEmuMsvc/StartupUi/StartupUi.cpp
index f80c6f3..1248016 100644
--- a/CasioEmuMsvc/StartupUi/StartupUi.cpp
+++ b/CasioEmuMsvc/StartupUi/StartupUi.cpp
@@ -239,31 +239,31 @@ class ModelEditor : public UIWindow {
 		}
 		ImGui::SetCursorPos({400, y});
 		if (ImGui::BeginChild("Model Info")) {
-			ImGui::Text("%s", "ModelEditor.Name"_lc);
+			ImGui::TextUnformatted("ModelEditor.Name"_lc);
 			if (ImGui::InputText("##name", name, 260)) {
 				mi.model_name = name;
 			}
-			ImGui::Text("%s", "ModelEditor.InterfacePath"_lc);
+			ImGui::TextUnformatted("ModelEditor.InterfacePath"_lc);
 			if (ImGui::InputText("##path1", path1, 260)) {
 				mi.interface_path = path1;
 			}
-			ImGui::Text("%s", "ModelEditor.RomPath"_lc);
+			ImGui::TextUnformatted("ModelEditor.RomPath"_lc);
 			if (ImGui::InputText("##path2", path2, 260)) {
 				mi.rom_path = path2;
 			}
-			ImGui::Text("%s", "ModelEditor.FlashDumpPath"_lc);
+			ImGui::TextUnformatted("ModelEditor.FlashDumpPath"_lc);
 			if (ImGui::InputText("##path3", path3, 260)) {
 				mi.flash_path = path3;
 			}
-			ImGui::Text("%s", "ModelEditor.CsrMask"_lc);
+			ImGui::TextUnformatted("ModelEditor.CsrMask"_lc);
 			if (ImGui::SliderInt("##a", &v, 0, 15, "0x%X")) {
 				mi.csr_mask = v;
 			}
-			ImGui::Text("%s", "ModelEditor.PdValue"_lc);
+			ImGui::TextUnformatted("ModelEditor.PdValue"_lc);
 			if (ImGui::SliderInt("##q", &k, 0, 15, "0x%X")) {
 				mi.pd_value = k;
 			}
-			ImGui::Text("%s", "ModelEditor.HardwareType"_lc);
+			ImGui::TextUnformatted("ModelEditor.HardwareType"_lc);
 			ImGui::SetNextItemWidth(80);
 			if (ImGui::BeginCombo("##cb", items[mi.hardware_id])) {
 				for (int n = 0; n < IM_ARRAYSIZE(items); n++) {
@@ -601,7 +601,7 @@ namespace casioemu {
             #endif
         
             if (ImGui::BeginPopupModal("StartupUI.EnterPassword"_lc, NULL, ImGuiWindowFlags_AlwaysAutoResize)) {
-                ImGui::Text("%s", "StartupUI.PasswordPopupHint"_lc);
+                ImGui::TextUnformatted("StartupUI.PasswordPopupHint"_lc);
                 
                 #ifdef __ANDROID__
                 float inputWidth = ImGui::GetContentRegionAvail().x - padding * 2;
@@ -665,9 +665,9 @@ namespace casioemu {
                 return;
             }
         
-            ImGui::Text("%s", "StartupUI.ChooseModelHint"_lc);
+            ImGui::TextUnformatted("StartupUI.ChooseModelHint"_lc);
             ImGui::Separator();
-            ImGui::Text("%s", "StartupUI.RecentlyUsed"_lc);
+            ImGui::TextUnformatted("StartupUI.RecentlyUsed"_lc);
 
             if (ImGui::BeginTable("Recently", 4, pretty_table | ImGuiTableFlags_ScrollY, ImVec2(0, tableHeight))) {
                 RenderHeaders();