Userland: Set Button text using the new String class

Userland/Applets/Audio/main.cpp

@@ -87,7 +87,7 @@ private:
         m_root_container->layout()->set_spacing(0);
         m_root_container->set_frame_shape(Gfx::FrameShape::Window);
 
-        m_percent_box = m_root_container->add<GUI::CheckBox>("\xE2\x84\xB9");
+        m_percent_box = m_root_container->add<GUI::CheckBox>(String::from_utf8_short_string("\xE2\x84\xB9"sv));
         m_percent_box->set_tooltip(m_show_percent ? "Hide percent" : "Show percent");
         m_percent_box->set_checked(m_show_percent);
         m_percent_box->on_checked = [&](bool show_percent) {
@@ -112,7 +112,7 @@ private:
             update();
         };
 
-        m_mute_box = m_root_container->add<GUI::CheckBox>("\xE2\x9D\x8C");
+        m_mute_box = m_root_container->add<GUI::CheckBox>(String::from_utf8_short_string("\xE2\x9D\x8C"sv));
         m_mute_box->set_checked(m_audio_muted);
         m_mute_box->set_tooltip(m_audio_muted ? "Unmute" : "Mute");
         m_mute_box->on_checked = [&](bool is_muted) {

Userland/Applications/Assistant/main.cpp

@@ -256,7 +256,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
             auto& result = app_state.results[i];
             auto& match = results_container.add<Assistant::ResultRow>();
             match.set_icon(result.bitmap());
-            match.set_text_deprecated(move(result.title()));
+            match.set_text(String::from_deprecated_string(result.title()).release_value_but_fixme_should_propagate_errors());
             match.set_tooltip(move(result.tooltip()));
             match.on_click = [&result](auto) {
                 result.activate();

Userland/Applications/Browser/BookmarksBarWidget.cpp

@@ -205,7 +205,7 @@ void BookmarksBarWidget::model_did_update(unsigned)
         m_bookmarks.append(button);
 
         button.set_button_style(Gfx::ButtonStyle::Coolbar);
-        button.set_text_deprecated(title);
+        button.set_text(String::from_deprecated_string(title).release_value_but_fixme_should_propagate_errors());
         button.set_icon(g_icon_bag.filetype_html);
         button.set_fixed_size(font().width(title) + 32, 20);
         button.set_relative_rect(rect);

Userland/Applications/Browser/DownloadWidget.cpp

@@ -86,7 +86,7 @@ DownloadWidget::DownloadWidget(const URL& url)
     destination_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);
     destination_label.set_fixed_height(16);
 
-    m_close_on_finish_checkbox = add<GUI::CheckBox>("Close when finished");
+    m_close_on_finish_checkbox = add<GUI::CheckBox>(String::from_utf8("Close when finished"sv).release_value_but_fixme_should_propagate_errors());
     m_close_on_finish_checkbox->set_checked(close_on_finish);
 
     m_close_on_finish_checkbox->on_checked = [&](bool checked) {
@@ -96,7 +96,7 @@ DownloadWidget::DownloadWidget(const URL& url)
     auto& button_container = add<GUI::Widget>();
     auto& button_container_layout = button_container.set_layout<GUI::HorizontalBoxLayout>();
     button_container_layout.add_spacer();
-    m_cancel_button = button_container.add<GUI::Button>("Cancel");
+    m_cancel_button = button_container.add<GUI::Button>(String::from_utf8_short_string("Cancel"sv));
     m_cancel_button->set_fixed_size(100, 22);
     m_cancel_button->on_click = [this](auto) {
         bool success = m_download->stop();
@@ -104,7 +104,7 @@ DownloadWidget::DownloadWidget(const URL& url)
         window()->close();
     };
 
-    m_close_button = button_container.add<GUI::Button>("OK");
+    m_close_button = button_container.add<GUI::Button>(String::from_utf8_short_string("OK"sv));
     m_close_button->set_enabled(false);
     m_close_button->set_fixed_size(100, 22);
     m_close_button->on_click = [this](auto) {
@@ -153,7 +153,7 @@ void DownloadWidget::did_finish(bool success)
     m_browser_image->load_from_file("/res/graphics/download-finished.gif"sv);
     window()->set_title("Download finished!");
     m_close_button->set_enabled(true);
-    m_cancel_button->set_text_deprecated("Open in Folder");
+    m_cancel_button->set_text(String::from_utf8("Open in Folder"sv).release_value_but_fixme_should_propagate_errors());
     m_cancel_button->on_click = [this](auto) {
         Desktop::Launcher::open(URL::create_with_file_scheme(Core::StandardPaths::downloads_directory(), m_url.basename()));
         window()->close();

Userland/Applications/Calculator/RoundingDialog.cpp

@@ -46,8 +46,8 @@ RoundingDialog::RoundingDialog(GUI::Window* parent_window, StringView title)
 
     m_rounding_spinbox = GUI::SpinBox::construct();
     m_buttons_container = GUI::Widget::construct();
-    m_ok_button = GUI::DialogButton::construct("OK");
-    m_cancel_button = GUI::DialogButton::construct("Cancel");
+    m_ok_button = GUI::DialogButton::construct(String::from_utf8_short_string("OK"sv));
+    m_cancel_button = GUI::DialogButton::construct(String::from_utf8_short_string("Cancel"sv));
 
     main_widget->add_child(*m_rounding_spinbox);
     main_widget->add_child(*m_buttons_container);

Userland/Applications/Calendar/AddEventDialog.cpp

@@ -93,7 +93,7 @@ AddEventDialog::AddEventDialog(Core::DateTime date_time, Window* parent_window)
     button_container.set_fixed_height(20);
     button_container.set_layout<GUI::HorizontalBoxLayout>();
     button_container.layout()->add_spacer();
-    auto& ok_button = button_container.add<GUI::Button>("OK");
+    auto& ok_button = button_container.add<GUI::Button>(String::from_utf8_short_string("OK"sv));
     ok_button.set_fixed_size(80, 20);
     ok_button.on_click = [this](auto) {
         dbgln("TODO: Add event icon on specific tile");

Userland/Applications/FileManager/PropertiesWindow.cpp

@@ -156,17 +156,17 @@ ErrorOr<void> PropertiesWindow::create_widgets(bool disable_rename)
 
     button_widget->layout()->add_spacer();
 
-    auto ok_button = TRY(make_button("OK", button_widget));
+    auto ok_button = TRY(make_button(String::from_utf8_short_string("OK"sv), button_widget));
     ok_button->on_click = [this](auto) {
         if (apply_changes())
             close();
     };
-    auto cancel_button = TRY(make_button("Cancel", button_widget));
+    auto cancel_button = TRY(make_button(String::from_utf8_short_string("Cancel"sv), button_widget));
     cancel_button->on_click = [this](auto) {
         close();
     };
 
-    m_apply_button = TRY(make_button("Apply", button_widget));
+    m_apply_button = TRY(make_button(String::from_utf8_short_string("Apply"sv), button_widget));
     m_apply_button->on_click = [this](auto) { apply_changes(); };
     m_apply_button->set_enabled(false);
 
@@ -268,7 +268,7 @@ ErrorOr<void> PropertiesWindow::setup_permission_checkboxes(GUI::CheckBox& box_r
     return {};
 }
 
-ErrorOr<NonnullRefPtr<GUI::Button>> PropertiesWindow::make_button(DeprecatedString text, GUI::Widget& parent)
+ErrorOr<NonnullRefPtr<GUI::Button>> PropertiesWindow::make_button(String text, GUI::Widget& parent)
 {
     auto button = TRY(parent.try_add<GUI::Button>(text));
     button->set_fixed_size(70, 22);

Userland/Applications/FileManager/PropertiesWindow.h

@@ -79,7 +79,7 @@ private:
         return "Unknown";
     }
 
-    static ErrorOr<NonnullRefPtr<GUI::Button>> make_button(DeprecatedString, GUI::Widget& parent);
+    static ErrorOr<NonnullRefPtr<GUI::Button>> make_button(String, GUI::Widget& parent);
     ErrorOr<void> setup_permission_checkboxes(GUI::CheckBox& box_read, GUI::CheckBox& box_write, GUI::CheckBox& box_execute, PermissionMasks masks, mode_t mode);
     void permission_changed(mode_t mask, bool set);
     bool apply_changes();

Userland/Applications/HexEditor/FindDialog.cpp

@@ -112,7 +112,7 @@ FindDialog::FindDialog()
         auto action = options[i];
         auto& radio = radio_container.add<GUI::RadioButton>();
         radio.set_enabled(action.enabled);
-        radio.set_text_deprecated(action.title);
+        radio.set_text(String::from_deprecated_string(action.title).release_value_but_fixme_should_propagate_errors());
 
         radio.on_checked = [this, i](auto) {
             m_selected_option = options[i].opt;

Userland/Applications/KeyboardMapper/KeyboardMapperWidget.cpp

@@ -52,7 +52,7 @@ void KeyboardMapperWidget::create_frame()
 
         auto& tmp_button = main_widget.add<KeyButton>();
         tmp_button.set_relative_rect(rect);
-        tmp_button.set_text_deprecated(keys[i].name);
+        tmp_button.set_text(String::from_deprecated_string(keys[i].name).release_value_but_fixme_should_propagate_errors());
         tmp_button.set_enabled(keys[i].enabled);
 
         tmp_button.on_click = [this, &tmp_button]() {
@@ -64,7 +64,7 @@ void KeyboardMapperWidget::create_frame()
                 auto index = keys[i].map_index;
                 VERIFY(index > 0);
 
-                tmp_button.set_text_deprecated(value);
+                tmp_button.set_text(String::from_deprecated_string(value).release_value_but_fixme_should_propagate_errors());
                 u32* map = map_from_name(m_current_map_name);
 
                 if (value.length() == 0)
@@ -89,16 +89,16 @@ void KeyboardMapperWidget::create_frame()
     m_map_group->set_layout<GUI::HorizontalBoxLayout>();
     m_map_group->set_fixed_width(450);
 
-    add_map_radio_button("map"sv, "Default"sv);
-    add_map_radio_button("shift_map"sv, "Shift"sv);
-    add_map_radio_button("altgr_map"sv, "AltGr"sv);
-    add_map_radio_button("alt_map"sv, "Alt"sv);
-    add_map_radio_button("shift_altgr_map"sv, "Shift+AltGr"sv);
+    add_map_radio_button("map"sv, String::from_utf8_short_string("Default"sv));
+    add_map_radio_button("shift_map"sv, String::from_utf8_short_string("Shift"sv));
+    add_map_radio_button("altgr_map"sv, String::from_utf8_short_string("AltGr"sv));
+    add_map_radio_button("alt_map"sv, String::from_utf8_short_string("Alt"sv));
+    add_map_radio_button("shift_altgr_map"sv, String::from_utf8("Shift+AltGr"sv).release_value_but_fixme_should_propagate_errors());
 
     bottom_widget.layout()->add_spacer();
 }
 
-void KeyboardMapperWidget::add_map_radio_button(const StringView map_name, const StringView button_text)
+void KeyboardMapperWidget::add_map_radio_button(const StringView map_name, String button_text)
 {
     auto& map_radio_button = m_map_group->add<GUI::RadioButton>(button_text);
     map_radio_button.set_name(map_name);
@@ -248,7 +248,7 @@ void KeyboardMapperWidget::set_current_map(const DeprecatedString current_map)
         StringBuilder sb;
         sb.append_code_point(map[index]);
 
-        m_keys.at(k)->set_text_deprecated(sb.to_deprecated_string());
+        m_keys.at(k)->set_text(sb.to_string().release_value_but_fixme_should_propagate_errors());
     }
 
     this->update();

Userland/Applications/KeyboardMapper/KeyboardMapperWidget.h

@@ -39,7 +39,7 @@ private:
 
     Vector<KeyButton*> m_keys;
     RefPtr<GUI::Widget> m_map_group;
-    void add_map_radio_button(const StringView map_name, const StringView button_text);
+    void add_map_radio_button(const StringView map_name, String button_text);
     u32* map_from_name(const StringView map_name);
     void update_modifier_radio_buttons(GUI::KeyEvent&);
 

Userland/Applications/PDFViewer/PDFViewerWidget.cpp

@@ -340,11 +340,11 @@ void PDFViewerWidget::initialize_toolbar(GUI::Toolbar& toolbar)
     toolbar.add_separator();
 
     m_show_clipping_paths = toolbar.add<GUI::CheckBox>();
-    m_show_clipping_paths->set_text_deprecated("Show clipping paths");
+    m_show_clipping_paths->set_text(String::from_utf8("Show clipping paths"sv).release_value_but_fixme_should_propagate_errors());
     m_show_clipping_paths->set_checked(m_viewer->show_clipping_paths(), GUI::AllowCallback::No);
     m_show_clipping_paths->on_checked = [&](auto checked) { m_viewer->set_show_clipping_paths(checked); };
     m_show_images = toolbar.add<GUI::CheckBox>();
-    m_show_images->set_text_deprecated("Show images");
+    m_show_images->set_text(String::from_utf8("Show images"sv).release_value_but_fixme_should_propagate_errors());
     m_show_images->set_checked(m_viewer->show_images(), GUI::AllowCallback::No);
     m_show_images->on_checked = [&](auto checked) { m_viewer->set_show_images(checked); };
 }

Userland/Applications/PixelPaint/CreateNewImageDialog.cpp

@@ -111,12 +111,12 @@ CreateNewImageDialog::CreateNewImageDialog(GUI::Window* parent_window)
     };
 
     auto& set_defaults_checkbox = main_widget->add<GUI::CheckBox>();
-    set_defaults_checkbox.set_text_deprecated("Use these settings as default");
+    set_defaults_checkbox.set_text(String::from_utf8("Use these settings as default"sv).release_value_but_fixme_should_propagate_errors());
 
     auto& button_container = main_widget->add<GUI::Widget>();
     button_container.set_layout<GUI::HorizontalBoxLayout>();
 
-    auto& ok_button = button_container.add<GUI::Button>("OK");
+    auto& ok_button = button_container.add<GUI::Button>(String::from_utf8_short_string("OK"sv));
     ok_button.on_click = [&](auto) {
         if (set_defaults_checkbox.is_checked()) {
             Config::write_string("PixelPaint"sv, "NewImage"sv, "Name"sv, m_image_name);
@@ -129,7 +129,7 @@ CreateNewImageDialog::CreateNewImageDialog(GUI::Window* parent_window)
     };
     ok_button.set_default(true);
 
-    auto& cancel_button = button_container.add<GUI::Button>("Cancel");
+    auto& cancel_button = button_container.add<GUI::Button>(String::from_utf8_short_string("Cancel"sv));
     cancel_button.on_click = [this](auto) {
         done(ExecResult::Cancel);
     };

Userland/Applications/PixelPaint/CreateNewLayerDialog.cpp

@@ -49,13 +49,13 @@ CreateNewLayerDialog::CreateNewLayerDialog(Gfx::IntSize suggested_size, GUI::Win
     auto& button_container = main_widget->add<GUI::Widget>();
     button_container.set_layout<GUI::HorizontalBoxLayout>();
 
-    auto& ok_button = button_container.add<GUI::Button>("OK");
+    auto& ok_button = button_container.add<GUI::Button>(String::from_utf8_short_string("OK"sv));
     ok_button.on_click = [this](auto) {
         done(ExecResult::OK);
     };
     ok_button.set_default(true);
 
-    auto& cancel_button = button_container.add<GUI::Button>("Cancel");
+    auto& cancel_button = button_container.add<GUI::Button>(String::from_utf8_short_string("Cancel"sv));
     cancel_button.on_click = [this](auto) {
         done(ExecResult::Cancel);
     };

Userland/Applications/PixelPaint/FilterParams.h

@@ -81,13 +81,13 @@ private:
             }
         }
 
-        auto& norm_checkbox = main_widget->template add<GUI::CheckBox>("Normalize");
+        auto& norm_checkbox = main_widget->template add<GUI::CheckBox>(String::from_utf8("Normalize"sv).release_value_but_fixme_should_propagate_errors());
         norm_checkbox.set_checked(false);
 
-        auto& wrap_checkbox = main_widget->template add<GUI::CheckBox>("Wrap");
+        auto& wrap_checkbox = main_widget->template add<GUI::CheckBox>(String::from_utf8_short_string("Wrap"sv));
         wrap_checkbox.set_checked(m_should_wrap);
 
-        auto& button = main_widget->template add<GUI::Button>("Done");
+        auto& button = main_widget->template add<GUI::Button>(String::from_utf8_short_string("Done"sv));
         button.on_click = [&](auto) {
             m_should_wrap = wrap_checkbox.is_checked();
             if (norm_checkbox.is_checked())

Userland/Applications/PixelPaint/Filters/FastBoxBlur.cpp

@@ -47,7 +47,7 @@ RefPtr<GUI::Widget> FastBoxBlur::get_settings_widget()
         name_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);
         name_label.set_fixed_height(10);
 
-        auto& asymmetric_checkbox = m_settings_widget->add<GUI::CheckBox>("Use Asymmetric Radii");
+        auto& asymmetric_checkbox = m_settings_widget->add<GUI::CheckBox>(String::from_utf8("Use Asymmetric Radii"sv).release_value_but_fixme_should_propagate_errors());
         asymmetric_checkbox.set_checked(false);
         asymmetric_checkbox.set_fixed_height(15);
         asymmetric_checkbox.on_checked = [&](bool checked) {
@@ -68,7 +68,7 @@ RefPtr<GUI::Widget> FastBoxBlur::get_settings_widget()
             update_preview();
         };
 
-        m_vector_checkbox = m_settings_widget->add<GUI::CheckBox>("Use Direction and magnitude");
+        m_vector_checkbox = m_settings_widget->add<GUI::CheckBox>(String::from_utf8("Use Direction and magnitude"sv).release_value_but_fixme_should_propagate_errors());
         m_vector_checkbox->set_checked(false);
         m_vector_checkbox->set_visible(false);
         m_vector_checkbox->set_fixed_height(15);
@@ -182,7 +182,7 @@ RefPtr<GUI::Widget> FastBoxBlur::get_settings_widget()
         gaussian_container.set_layout<GUI::HorizontalBoxLayout>();
         gaussian_container.layout()->set_margins({ 4, 0, 4, 0 });
 
-        m_gaussian_checkbox = gaussian_container.add<GUI::CheckBox>("Approximate Gaussian Blur");
+        m_gaussian_checkbox = gaussian_container.add<GUI::CheckBox>(String::from_utf8("Approximate Gaussian Blur"sv).release_value_but_fixme_should_propagate_errors());
         m_gaussian_checkbox->set_checked(m_approximate_gauss);
         m_gaussian_checkbox->set_tooltip("A real gaussian blur can be approximated by running the box blur multiple times with different weights.");
         m_gaussian_checkbox->on_checked = [this](bool checked) {

Userland/Applications/PixelPaint/LayerPropertiesWidget.cpp

@@ -58,7 +58,7 @@ LayerPropertiesWidget::LayerPropertiesWidget()
             m_layer->set_opacity_percent(value);
     };
 
-    m_visibility_checkbox = group_box.add<GUI::CheckBox>("Visible");
+    m_visibility_checkbox = group_box.add<GUI::CheckBox>(String::from_utf8_short_string("Visible"sv));
     m_visibility_checkbox->set_fixed_height(20);
     m_visibility_checkbox->on_checked = [this](bool checked) {
         if (m_layer)

Userland/Applications/PixelPaint/Tools/EllipseTool.cpp

@@ -157,9 +157,9 @@ GUI::Widget* EllipseTool::get_properties_widget()
 
         auto& mode_radio_container = mode_container.add<GUI::Widget>();
         mode_radio_container.set_layout<GUI::VerticalBoxLayout>();
-        auto& outline_mode_radio = mode_radio_container.add<GUI::RadioButton>("Outline");
-        auto& fill_mode_radio = mode_radio_container.add<GUI::RadioButton>("Fill");
-        auto& aa_enable_checkbox = mode_radio_container.add<GUI::CheckBox>("Anti-alias");
+        auto& outline_mode_radio = mode_radio_container.add<GUI::RadioButton>(String::from_utf8_short_string("Outline"sv));
+        auto& fill_mode_radio = mode_radio_container.add<GUI::RadioButton>(String::from_utf8_short_string("Fill"sv));
+        auto& aa_enable_checkbox = mode_radio_container.add<GUI::CheckBox>(String::from_utf8("Anti-alias"sv).release_value_but_fixme_should_propagate_errors());
 
         aa_enable_checkbox.on_checked = [&](bool checked) {
             m_antialias_enabled = checked;

Userland/Applications/PixelPaint/Tools/EraseTool.cpp

@@ -100,7 +100,7 @@ GUI::Widget* EraseTool::get_properties_widget()
 
         auto& use_secondary_color_checkbox = secondary_color_container.add<GUI::CheckBox>();
         use_secondary_color_checkbox.set_checked(m_use_secondary_color);
-        use_secondary_color_checkbox.set_text_deprecated("Use secondary color");
+        use_secondary_color_checkbox.set_text(String::from_utf8("Use secondary color"sv).release_value_but_fixme_should_propagate_errors());
         use_secondary_color_checkbox.on_checked = [&](bool checked) {
             m_use_secondary_color = checked;
         };
@@ -114,8 +114,8 @@ GUI::Widget* EraseTool::get_properties_widget()
 
         auto& mode_radio_container = mode_container.add<GUI::Widget>();
         mode_radio_container.set_layout<GUI::VerticalBoxLayout>();
-        auto& pencil_mode_radio = mode_radio_container.add<GUI::RadioButton>("Pencil");
-        auto& brush_mode_radio = mode_radio_container.add<GUI::RadioButton>("Brush");
+        auto& pencil_mode_radio = mode_radio_container.add<GUI::RadioButton>(String::from_utf8_short_string("Pencil"sv));
+        auto& brush_mode_radio = mode_radio_container.add<GUI::RadioButton>(String::from_utf8_short_string("Brush"sv));
 
         pencil_mode_radio.on_checked = [&](bool) {
             m_draw_mode = DrawMode::Pencil;

Userland/Applications/PixelPaint/Tools/GradientTool.cpp

@@ -203,7 +203,7 @@ GUI::Widget* GradientTool::get_properties_widget()
         auto& button_container_layout = button_container.set_layout<GUI::HorizontalBoxLayout>();
         button_container_layout.add_spacer();
 
-        auto& apply_button = button_container.add<GUI::DialogButton>("Apply");
+        auto& apply_button = button_container.add<GUI::DialogButton>(String::from_utf8_short_string("Apply"sv));
         apply_button.on_click = [this](auto) {
             rasterize_gradient();
         };

Userland/Applications/PixelPaint/Tools/LineTool.cpp

@@ -150,7 +150,7 @@ GUI::Widget* LineTool::get_properties_widget()
         mode_label.set_text_alignment(Gfx::TextAlignment::CenterLeft);
         mode_label.set_fixed_size(80, 20);
 
-        auto& aa_enable_checkbox = mode_container.add<GUI::CheckBox>("Anti-alias");
+        auto& aa_enable_checkbox = mode_container.add<GUI::CheckBox>(String::from_utf8("Anti-alias"sv).release_value_but_fixme_should_propagate_errors());
         aa_enable_checkbox.on_checked = [&](bool checked) {
             m_antialias_enabled = checked;
         };

Userland/Applications/PixelPaint/Tools/MoveTool.cpp

@@ -304,9 +304,9 @@ GUI::Widget* MoveTool::get_properties_widget()
 
         auto& mode_radio_container = selection_mode_container.add<GUI::Widget>();
         mode_radio_container.set_layout<GUI::VerticalBoxLayout>();
-        m_selection_mode_foreground = mode_radio_container.add<GUI::RadioButton>("Foreground");
+        m_selection_mode_foreground = mode_radio_container.add<GUI::RadioButton>(String::from_utf8("Foreground"sv).release_value_but_fixme_should_propagate_errors());
 
-        m_selection_mode_active = mode_radio_container.add<GUI::RadioButton>("Active Layer");
+        m_selection_mode_active = mode_radio_container.add<GUI::RadioButton>(String::from_utf8("Active Layer"sv).release_value_but_fixme_should_propagate_errors());
 
         m_selection_mode_foreground->on_checked = [&](bool) {
             m_layer_selection_mode = LayerSelectionMode::ForegroundLayer;

Userland/Applications/PixelPaint/Tools/PickerTool.cpp

@@ -46,7 +46,7 @@ GUI::Widget* PickerTool::get_properties_widget()
         m_properties_widget = GUI::Widget::construct();
         m_properties_widget->set_layout<GUI::VerticalBoxLayout>();
 
-        auto& sample_checkbox = m_properties_widget->add<GUI::CheckBox>("Sample all layers");
+        auto& sample_checkbox = m_properties_widget->add<GUI::CheckBox>(String::from_utf8("Sample all layers"sv).release_value_but_fixme_should_propagate_errors());
         sample_checkbox.set_checked(m_sample_all_layers);
         sample_checkbox.on_checked = [&](bool value) {
             m_sample_all_layers = value;

Userland/Applications/PixelPaint/Tools/RectangleTool.cpp

@@ -187,12 +187,12 @@ GUI::Widget* RectangleTool::get_properties_widget()
 
         auto& mode_radio_container = mode_container.add<GUI::Widget>();
         mode_radio_container.set_layout<GUI::VerticalBoxLayout>();
-        auto& outline_mode_radio = mode_radio_container.add<GUI::RadioButton>("Outline");
-        auto& fill_mode_radio = mode_radio_container.add<GUI::RadioButton>("Fill");
-        auto& gradient_mode_radio = mode_radio_container.add<GUI::RadioButton>("Gradient");
+        auto& outline_mode_radio = mode_radio_container.add<GUI::RadioButton>(String::from_utf8_short_string("Outline"sv));
+        auto& fill_mode_radio = mode_radio_container.add<GUI::RadioButton>(String::from_utf8_short_string("Fill"sv));
+        auto& gradient_mode_radio = mode_radio_container.add<GUI::RadioButton>(String::from_utf8("Gradient"sv).release_value_but_fixme_should_propagate_errors());
         mode_radio_container.set_fixed_width(70);
 
-        auto& rounded_corners_mode_radio = mode_radio_container.add<GUI::RadioButton>("Rounded");
+        auto& rounded_corners_mode_radio = mode_radio_container.add<GUI::RadioButton>(String::from_utf8_short_string("Rounded"sv));
 
         outline_mode_radio.on_checked = [&, update_slider](bool) {
             m_fill_mode = FillMode::Outline;
@@ -215,7 +215,7 @@ GUI::Widget* RectangleTool::get_properties_widget()
         auto& mode_extras_container = mode_container.add<GUI::Widget>();
         mode_extras_container.set_layout<GUI::VerticalBoxLayout>();
 
-        auto& aa_enable_checkbox = mode_extras_container.add<GUI::CheckBox>("Anti-alias");
+        auto& aa_enable_checkbox = mode_extras_container.add<GUI::CheckBox>(String::from_utf8("Anti-alias"sv).release_value_but_fixme_should_propagate_errors());
         aa_enable_checkbox.on_checked = [&](bool checked) {
             m_antialias_enabled = checked;
         };

Userland/Applications/PixelPaint/Tools/TextTool.cpp

@@ -112,7 +112,7 @@ GUI::Widget* TextTool::get_properties_widget()
 
     m_font_label = m_properties_widget->add<GUI::Label>(m_selected_font->human_readable_name());
 
-    auto& change_font_button = m_properties_widget->add<GUI::Button>("Change Font...");
+    auto& change_font_button = m_properties_widget->add<GUI::Button>(String::from_utf8("Change Font..."sv).release_value_but_fixme_should_propagate_errors());
     change_font_button.on_click = [&](auto) {
         auto picker = GUI::FontPicker::construct(nullptr, m_selected_font, false);
         if (picker->exec() == GUI::Dialog::ExecResult::OK) {

Userland/Applications/Spreadsheet/CellTypeDialog.cpp

@@ -57,7 +57,7 @@ CellTypeDialog::CellTypeDialog(Vector<Position> const& positions, Sheet& sheet,
     auto& button_layout = buttonbox.set_layout<GUI::HorizontalBoxLayout>();
     button_layout.set_spacing(10);
     button_layout.add_spacer();
-    auto& ok_button = buttonbox.add<GUI::Button>("OK");
+    auto& ok_button = buttonbox.add<GUI::Button>(String::from_utf8_short_string("OK"sv));
     ok_button.set_fixed_width(80);
     ok_button.on_click = [&](auto) { done(ExecResult::OK); };
 }
@@ -158,7 +158,7 @@ void CellTypeDialog::setup_tabs(GUI::TabWidget& tabs, Vector<Position> const& po
         };
 
         {
-            auto& checkbox = right_side.add<GUI::CheckBox>("Override max length");
+            auto& checkbox = right_side.add<GUI::CheckBox>(String::from_utf8("Override max length"sv).release_value_but_fixme_should_propagate_errors());
             auto& spinbox = right_side.add<GUI::SpinBox>();
             checkbox.set_checked(m_length != -1);
             spinbox.set_min(0);
@@ -178,7 +178,7 @@ void CellTypeDialog::setup_tabs(GUI::TabWidget& tabs, Vector<Position> const& po
             };
         }
         {
-            auto& checkbox = right_side.add<GUI::CheckBox>("Override display format");
+            auto& checkbox = right_side.add<GUI::CheckBox>(String::from_utf8("Override display format"sv).release_value_but_fixme_should_propagate_errors());
             auto& editor = right_side.add<GUI::TextEditor>();
             checkbox.set_checked(!m_format.is_empty());
             editor.set_name("format_editor");

Userland/Applications/Terminal/main.cpp

@@ -203,8 +203,8 @@ static ErrorOr<NonnullRefPtr<GUI::Window>> create_find_window(VT::TerminalWidget
         find_forwards->click();
     };
 
-    auto match_case = TRY(main_widget->try_add<GUI::CheckBox>("Case sensitive"));
-    auto wrap_around = TRY(main_widget->try_add<GUI::CheckBox>("Wrap around"));
+    auto match_case = TRY(main_widget->try_add<GUI::CheckBox>(TRY(String::from_utf8("Case sensitive"sv))));
+    auto wrap_around = TRY(main_widget->try_add<GUI::CheckBox>(TRY(String::from_utf8("Wrap around"sv))));
 
     find_backwards->on_click = [&terminal, find_textbox, match_case, wrap_around](auto) {
         auto needle = find_textbox->text();

Userland/Applications/ThemeEditor/MainWidget.cpp

@@ -487,7 +487,7 @@ ErrorOr<void> MainWidget::add_property_tab(PropertyTab const& property_tab)
                     TRY(row_widget->load_from_gml(flag_property_gml));
 
                     auto& checkbox = *row_widget->find_descendant_of_type_named<GUI::CheckBox>("checkbox");
-                    checkbox.set_text_deprecated(to_string(role));
+                    checkbox.set_text(String::from_deprecated_string(DeprecatedString(to_string(role))).release_value_but_fixme_should_propagate_errors());
                     checkbox.on_checked = [&, role](bool checked) {
                         set_flag(role, checked);
                     };

Userland/DevTools/HackStudio/FindInFilesWidget.cpp

@@ -122,7 +122,7 @@ FindInFilesWidget::FindInFilesWidget()
 
     m_textbox = top_container.add<GUI::TextBox>();
 
-    m_button = top_container.add<GUI::Button>("Find in files");
+    m_button = top_container.add<GUI::Button>(String::from_utf8("Find in files"sv).release_value_but_fixme_should_propagate_errors());
     m_button->set_fixed_width(100);
 
     m_result_view = add<GUI::TableView>();

Userland/DevTools/Inspector/main.cpp

@@ -51,7 +51,7 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
     auto app_icon = TRY(GUI::Icon::try_create_default_icon("app-inspector"sv));
     if (gui_mode) {
     choose_pid:
-        auto process_chooser = TRY(GUI::ProcessChooser::try_create("Inspector"sv, "Inspect"sv, app_icon.bitmap_for_size(16)));
+        auto process_chooser = TRY(GUI::ProcessChooser::try_create("Inspector"sv, String::from_utf8_short_string("Inspect"sv), app_icon.bitmap_for_size(16)));
         if (process_chooser->exec() == GUI::Dialog::ExecResult::Cancel)
             return 0;
         pid = process_chooser->pid();

Userland/DevTools/Profiler/main.cpp

@@ -331,7 +331,7 @@ static bool prompt_to_stop_profiling(pid_t pid, DeprecatedString const& process_
     }).release_value_but_fixme_should_propagate_errors();
     update_timer->start();
 
-    auto& stop_button = widget->add<GUI::Button>("Stop");
+    auto& stop_button = widget->add<GUI::Button>(String::from_utf8_short_string("Stop"sv));
     stop_button.set_fixed_size(140, 22);
     stop_button.on_click = [&](auto) {
         GUI::Application::the()->quit();
@@ -344,7 +344,7 @@ static bool prompt_to_stop_profiling(pid_t pid, DeprecatedString const& process_
 bool generate_profile(pid_t& pid)
 {
     if (!pid) {
-        auto process_chooser = GUI::ProcessChooser::construct("Profiler"sv, "Profile"sv, Gfx::Bitmap::load_from_file("/res/icons/16x16/app-profiler.png"sv).release_value_but_fixme_should_propagate_errors());
+        auto process_chooser = GUI::ProcessChooser::construct("Profiler"sv, String::from_utf8_short_string("Profile"sv), Gfx::Bitmap::load_from_file("/res/icons/16x16/app-profiler.png"sv).release_value_but_fixme_should_propagate_errors());
         if (process_chooser->exec() == GUI::Dialog::ExecResult::Cancel)
             return false;
         pid = process_chooser->pid();

Userland/Games/Hearts/Game.cpp

@@ -78,7 +78,7 @@ Game::Game()
     m_players[3].name = "Lisa";
     m_players[3].taken_cards_target = { width, height / 2 - Card::height / 2 };
 
-    m_passing_button = add<GUI::Button>("Pass Left");
+    m_passing_button = add<GUI::Button>(String::from_utf8("Pass Left"sv).release_value_but_fixme_should_propagate_errors());
     constexpr int button_width = 120;
     constexpr int button_height = 30;
     m_passing_button->set_relative_rect(width / 2 - button_width / 2, height - 3 * outer_border_size - Card::height - button_height, button_width, button_height);
@@ -135,7 +135,7 @@ void Game::show_score_card(bool game_over)
     button_container.set_shrink_to_fit(true);
     button_container.set_layout<GUI::VerticalBoxLayout>();
 
-    auto& close_button = button_container.add<GUI::Button>("OK");
+    auto& close_button = button_container.add<GUI::Button>(String::from_utf8_short_string("OK"sv));
     close_button.on_click = [&score_dialog](auto) {
         score_dialog->done(GUI::Dialog::ExecResult::OK);
     };
@@ -180,13 +180,13 @@ void Game::setup(DeprecatedString player_name, int hand_number)
         m_human_can_play = true;
         switch (passing_direction()) {
         case PassingDirection::Left:
-            m_passing_button->set_text_deprecated("Pass Left");
+            m_passing_button->set_text(String::from_utf8("Pass Left"sv).release_value_but_fixme_should_propagate_errors());
             break;
         case PassingDirection::Across:
-            m_passing_button->set_text_deprecated("Pass Across");
+            m_passing_button->set_text(String::from_utf8("Pass Across"sv).release_value_but_fixme_should_propagate_errors());
             break;
         case PassingDirection::Right:
-            m_passing_button->set_text_deprecated("Pass Right");
+            m_passing_button->set_text(String::from_utf8("Pass Right"sv).release_value_but_fixme_should_propagate_errors());
             break;
         default:
             VERIFY_NOT_REACHED();
@@ -871,7 +871,7 @@ void Game::pass_cards()
     }
 
     m_state = State::PassingAccept;
-    m_passing_button->set_text_deprecated("OK");
+    m_passing_button->set_text(String::from_utf8_short_string("OK"sv));
     m_passing_button->set_enabled(true);
 }
 

Userland/Games/Hearts/SettingsDialog.cpp

@@ -42,11 +42,11 @@ SettingsDialog::SettingsDialog(GUI::Window* parent, DeprecatedString player_name
     auto& button_layout = button_box.set_layout<GUI::HorizontalBoxLayout>();
     button_layout.set_spacing(10);
 
-    button_box.add<GUI::Button>("Cancel").on_click = [this](auto) {
+    button_box.add<GUI::Button>(String::from_utf8_short_string("Cancel"sv)).on_click = [this](auto) {
         done(ExecResult::Cancel);
     };
 
-    button_box.add<GUI::Button>("OK").on_click = [this](auto) {
+    button_box.add<GUI::Button>(String::from_utf8_short_string("OK"sv)).on_click = [this](auto) {
         done(ExecResult::OK);
     };
 }

Userland/Libraries/LibGUI/Action.cpp

@@ -289,7 +289,7 @@ void Action::set_text(DeprecatedString text)
         return;
     m_text = move(text);
     for_each_toolbar_button([&](auto& button) {
-        button.set_text_deprecated(m_text);
+        button.set_text(String::from_deprecated_string(m_text).release_value_but_fixme_should_propagate_errors());
     });
     for_each_menu_item([&](auto& menu_item) {
         menu_item.update_from_action({});

Userland/Libraries/LibGUI/Breadcrumbbar.cpp

@@ -75,7 +75,7 @@ void Breadcrumbbar::append_segment(DeprecatedString text, Gfx::Bitmap const* ico
 {
     auto& button = add<BreadcrumbButton>();
     button.set_button_style(Gfx::ButtonStyle::Coolbar);
-    button.set_text_deprecated(text);
+    button.set_text(String::from_deprecated_string(text).release_value_but_fixme_should_propagate_errors());
     button.set_icon(icon);
     button.set_tooltip(move(tooltip));
     button.set_focus_policy(FocusPolicy::TabFocus);

Userland/Libraries/LibGUI/ColorPicker.cpp

@@ -234,14 +234,14 @@ void ColorPicker::build_ui()
     button_container.layout()->add_spacer();
 
     auto& ok_button = button_container.add<DialogButton>();
-    ok_button.set_text_deprecated("OK");
+    ok_button.set_text(String::from_utf8_short_string("OK"sv));
     ok_button.on_click = [this](auto) {
         done(ExecResult::OK);
     };
     ok_button.set_default(true);
 
     auto& cancel_button = button_container.add<DialogButton>();
-    cancel_button.set_text_deprecated("Cancel");
+    cancel_button.set_text(String::from_utf8_short_string("Cancel"sv));
     cancel_button.on_click = [this](auto) {
         done(ExecResult::Cancel);
     };
@@ -416,7 +416,7 @@ void ColorPicker::build_ui_custom(Widget& root_container)
     make_spinbox(Blue, m_color.blue());
     make_spinbox(Alpha, m_color.alpha());
 
-    m_selector_button = vertical_container.add<GUI::Button>("Select on screen");
+    m_selector_button = vertical_container.add<GUI::Button>(String::from_utf8("Select on screen"sv).release_value_but_fixme_should_propagate_errors());
     m_selector_button->on_click = [this](auto) {
         auto selector = ColorSelectOverlay::construct();
         auto original_color = m_color;

Userland/Libraries/LibGUI/FilePicker.cpp

@@ -217,14 +217,14 @@ FilePicker::FilePicker(Window* parent_window, Mode mode, StringView filename, St
     };
 
     auto& ok_button = *widget->find_descendant_of_type_named<GUI::Button>("ok_button");
-    ok_button.set_text_deprecated(ok_button_name(m_mode));
+    ok_button.set_text(ok_button_name(m_mode));
     ok_button.on_click = [this](auto) {
         on_file_return();
     };
     ok_button.set_enabled(m_mode == Mode::OpenFolder || !m_filename_textbox->text().is_empty());
 
     auto& cancel_button = *widget->find_descendant_of_type_named<GUI::Button>("cancel_button");
-    cancel_button.set_text_deprecated("Cancel");
+    cancel_button.set_text(String::from_utf8_short_string("Cancel"sv));
     cancel_button.on_click = [this](auto) {
         done(ExecResult::Cancel);
     };

Userland/Libraries/LibGUI/FilePicker.h

@@ -48,17 +48,17 @@ private:
 
     FilePicker(Window* parent_window, Mode type = Mode::Open, StringView filename = "Untitled"sv, StringView path = Core::StandardPaths::home_directory(), ScreenPosition screen_position = Dialog::ScreenPosition::CenterWithinParent, Optional<Vector<FileTypeFilter>> allowed_file_types = {});
 
-    static DeprecatedString ok_button_name(Mode mode)
+    static String ok_button_name(Mode mode)
     {
         switch (mode) {
         case Mode::Open:
         case Mode::OpenMultiple:
         case Mode::OpenFolder:
-            return "Open";
+            return String::from_utf8_short_string("Open"sv);
         case Mode::Save:
-            return "Save";
+            return String::from_utf8_short_string("Save"sv);
         default:
-            return "OK";
+            return String::from_utf8_short_string("OK"sv);
         }
     }
 

Userland/Libraries/LibGUI/IncrementalSearchBanner.cpp

@@ -37,7 +37,7 @@ IncrementalSearchBanner::IncrementalSearchBanner(TextEditor& editor)
     };
 
     m_close_button = find_descendant_of_type_named<Button>("incremental_search_banner_close_button");
-    m_close_button->set_text_deprecated("\xE2\x9D\x8C");
+    m_close_button->set_text(String::from_utf8_short_string("\xE2\x9D\x8C"sv));
     m_close_button->on_click = [this](auto) {
         hide();
     };

Userland/Libraries/LibGUI/InputBox.cpp

@@ -107,7 +107,7 @@ void InputBox::build()
     button_container_inner.layout()->add_spacer();
 
     m_ok_button = button_container_inner.add<DialogButton>();
-    m_ok_button->set_text_deprecated("OK");
+    m_ok_button->set_text(String::from_utf8_short_string("OK"sv));
     m_ok_button->on_click = [this](auto) {
         dbgln("GUI::InputBox: OK button clicked");
         done(ExecResult::OK);
@@ -115,7 +115,7 @@ void InputBox::build()
     m_ok_button->set_default(true);
 
     m_cancel_button = button_container_inner.add<DialogButton>();
-    m_cancel_button->set_text_deprecated("Cancel");
+    m_cancel_button->set_text(String::from_utf8_short_string("Cancel"sv));
     m_cancel_button->on_click = [this](auto) {
         dbgln("GUI::InputBox: Cancel button clicked");
         done(ExecResult::Cancel);

Userland/Libraries/LibGUI/MessageBox.cpp

@@ -49,9 +49,12 @@ Dialog::ExecResult MessageBox::ask_about_unsaved_changes(Window* parent_window,
     if (parent_window)
         box->set_icon(parent_window->icon());
 
-    box->m_yes_button->set_text_deprecated(path.is_empty() ? "Save As..." : "Save");
-    box->m_no_button->set_text_deprecated("Discard");
-    box->m_cancel_button->set_text_deprecated("Cancel");
+    if (path.is_empty())
+        box->m_yes_button->set_text(String::from_utf8("Save As..."sv).release_value_but_fixme_should_propagate_errors());
+    else
+        box->m_yes_button->set_text(String::from_utf8_short_string("Save"sv));
+    box->m_no_button->set_text(String::from_utf8_short_string("Discard"sv));
+    box->m_cancel_button->set_text(String::from_utf8_short_string("Cancel"sv));
 
     return box->exec();
 }
@@ -151,11 +154,11 @@ void MessageBox::build()
     constexpr int button_width = 80;
     int button_count = 0;
 
-    auto add_button = [&](DeprecatedString label, ExecResult result) -> GUI::Button& {
+    auto add_button = [&](String label, ExecResult result) -> GUI::Button& {
         auto& button = button_container.add<Button>();
         button.set_fixed_width(button_width);
-        button.set_text_deprecated(label);
-        button.on_click = [this, label, result](auto) {
+        button.set_text(move(label));
+        button.on_click = [this, result](auto) {
             done(result);
         };
         ++button_count;
@@ -164,13 +167,13 @@ void MessageBox::build()
 
     button_container.layout()->add_spacer();
     if (should_include_ok_button())
-        m_ok_button = add_button("OK", ExecResult::OK);
+        m_ok_button = add_button(String::from_utf8_short_string("OK"sv), ExecResult::OK);
     if (should_include_yes_button())
-        m_yes_button = add_button("Yes", ExecResult::Yes);
+        m_yes_button = add_button(String::from_utf8_short_string("Yes"sv), ExecResult::Yes);
     if (should_include_no_button())
-        m_no_button = add_button("No", ExecResult::No);
+        m_no_button = add_button(String::from_utf8_short_string("No"sv), ExecResult::No);
     if (should_include_cancel_button())
-        m_cancel_button = add_button("Cancel", ExecResult::Cancel);
+        m_cancel_button = add_button(String::from_utf8_short_string("Cancel"sv), ExecResult::Cancel);
     button_container.layout()->add_spacer();
 
     int width = (button_count * button_width) + ((button_count - 1) * button_container.layout()->spacing()) + 32;

Userland/Libraries/LibGUI/ProcessChooser.cpp

@@ -15,10 +15,10 @@
 
 namespace GUI {
 
-ProcessChooser::ProcessChooser(StringView window_title, StringView button_label, Gfx::Bitmap const* window_icon, GUI::Window* parent_window)
+ProcessChooser::ProcessChooser(StringView window_title, String button_label, Gfx::Bitmap const* window_icon, GUI::Window* parent_window)
     : Dialog(parent_window)
     , m_window_title(window_title)
-    , m_button_label(button_label)
+    , m_button_label(move(button_label))
     , m_window_icon(window_icon)
 {
     set_title(m_window_title);
@@ -62,7 +62,7 @@ ProcessChooser::ProcessChooser(StringView window_title, StringView button_label,
         auto index = m_table_view->selection().first();
         set_pid_from_index_and_close(index);
     };
-    auto& cancel_button = button_container.add<GUI::Button>("Cancel");
+    auto& cancel_button = button_container.add<GUI::Button>(String::from_utf8_short_string("Cancel"sv));
     cancel_button.set_fixed_width(80);
     cancel_button.on_click = [this](auto) {
         done(ExecResult::Cancel);

Userland/Libraries/LibGUI/ProcessChooser.h

@@ -7,6 +7,7 @@
 
 #pragma once
 
+#include <AK/String.h>
 #include <LibCore/Timer.h>
 #include <LibGUI/Dialog.h>
 #include <LibGUI/RunningProcessesModel.h>
@@ -22,14 +23,14 @@ public:
     pid_t pid() const { return m_pid; }
 
 private:
-    ProcessChooser(StringView window_title = "Process Chooser"sv, StringView button_label = "Select"sv, Gfx::Bitmap const* window_icon = nullptr, GUI::Window* parent_window = nullptr);
+    ProcessChooser(StringView window_title = "Process Chooser"sv, String button_label = String::from_utf8_short_string("Select"sv), Gfx::Bitmap const* window_icon = nullptr, GUI::Window* parent_window = nullptr);
 
     void set_pid_from_index_and_close(ModelIndex const&);
 
     pid_t m_pid { 0 };
 
     DeprecatedString m_window_title;
-    DeprecatedString m_button_label;
+    String m_button_label;
     RefPtr<Gfx::Bitmap> m_window_icon;
     RefPtr<TableView> m_table_view;
     RefPtr<RunningProcessesModel> m_process_model;

Userland/Libraries/LibGUI/SettingsWindow.cpp

@@ -46,7 +46,7 @@ ErrorOr<NonnullRefPtr<SettingsWindow>> SettingsWindow::create(DeprecatedString t
     button_container->layout()->set_spacing(6);
 
     if (show_defaults_button == ShowDefaultsButton::Yes) {
-        window->m_reset_button = TRY(button_container->try_add<GUI::DialogButton>("Defaults"));
+        window->m_reset_button = TRY(button_container->try_add<GUI::DialogButton>(TRY(String::from_utf8("Defaults"sv))));
         window->m_reset_button->on_click = [window = window->make_weak_ptr<SettingsWindow>()](auto) {
             window->reset_default_values();
         };
@@ -54,19 +54,19 @@ ErrorOr<NonnullRefPtr<SettingsWindow>> SettingsWindow::create(DeprecatedString t
 
     TRY(button_container->layout()->try_add_spacer());
 
-    window->m_ok_button = TRY(button_container->try_add<GUI::DialogButton>("OK"));
+    window->m_ok_button = TRY(button_container->try_add<GUI::DialogButton>(String::from_utf8_short_string("OK"sv)));
     window->m_ok_button->on_click = [window = window->make_weak_ptr<SettingsWindow>()](auto) {
         window->apply_settings();
         GUI::Application::the()->quit();
     };
 
-    window->m_cancel_button = TRY(button_container->try_add<GUI::DialogButton>("Cancel"));
+    window->m_cancel_button = TRY(button_container->try_add<GUI::DialogButton>(String::from_utf8_short_string("Cancel"sv)));
     window->m_cancel_button->on_click = [window = window->make_weak_ptr<SettingsWindow>()](auto) {
         window->cancel_settings();
         GUI::Application::the()->quit();
     };
 
-    window->m_apply_button = TRY(button_container->try_add<GUI::DialogButton>("Apply"));
+    window->m_apply_button = TRY(button_container->try_add<GUI::DialogButton>(String::from_utf8_short_string("Apply"sv)));
     window->m_apply_button->set_enabled(false);
     window->m_apply_button->on_click = [window = window->make_weak_ptr<SettingsWindow>()](auto) {
         window->apply_settings();

Userland/Libraries/LibGUI/Toolbar.cpp

@@ -56,18 +56,18 @@ private:
         if (action.icon())
             set_icon(action.icon());
         else
-            set_text_deprecated(action.text());
+            set_text(String::from_deprecated_string(action.text()).release_value_but_fixme_should_propagate_errors());
         set_button_style(Gfx::ButtonStyle::Coolbar);
     }
 
-    virtual void set_text_deprecated(DeprecatedString text) override
+    virtual void set_text(String text) override
     {
         auto const* action = this->action();
         VERIFY(action);
 
         set_tooltip(tooltip(*action));
         if (!action->icon())
-            Button::set_text_deprecated(move(text));
+            Button::set_text(move(text));
     }
 
     DeprecatedString tooltip(Action const& action) const

Userland/Libraries/LibGUI/Wizards/WizardDialog.cpp

@@ -46,12 +46,12 @@ WizardDialog::WizardDialog(Window* parent_window)
     nav_container_widget.layout()->set_spacing(0);
     nav_container_widget.layout()->add_spacer();
 
-    m_back_button = nav_container_widget.add<DialogButton>("< Back");
+    m_back_button = nav_container_widget.add<DialogButton>(String::from_utf8_short_string("< Back"sv));
     m_back_button->on_click = [&](auto) {
         pop_page();
     };
 
-    m_next_button = nav_container_widget.add<DialogButton>("Next >");
+    m_next_button = nav_container_widget.add<DialogButton>(String::from_utf8_short_string("Next >"sv));
     m_next_button->on_click = [&](auto) {
         VERIFY(has_pages());
 
@@ -68,7 +68,7 @@ WizardDialog::WizardDialog(Window* parent_window)
     auto& button_spacer = nav_container_widget.add<Widget>();
     button_spacer.set_fixed_width(10);
 
-    m_cancel_button = nav_container_widget.add<DialogButton>("Cancel");
+    m_cancel_button = nav_container_widget.add<DialogButton>(String::from_utf8_short_string("Cancel"sv));
     m_cancel_button->on_click = [&](auto) {
         handle_cancel();
     };
@@ -122,9 +122,12 @@ void WizardDialog::update_navigation()
     m_back_button->set_enabled(m_page_stack.size() > 1);
     if (has_pages()) {
         m_next_button->set_enabled(current_page().is_final_page() || current_page().can_go_next());
-        m_next_button->set_text_deprecated(current_page().is_final_page() ? "Finish" : "Next >");
+        if (current_page().is_final_page())
+            m_next_button->set_text(String::from_utf8_short_string("Finish"sv));
+        else
+            m_next_button->set_text(String::from_utf8_short_string("Next >"sv));
     } else {
-        m_next_button->set_text_deprecated("Next >");
+        m_next_button->set_text(String::from_utf8_short_string("Next >"sv));
         m_next_button->set_enabled(false);
     }
 }

Userland/Services/Taskbar/ShutdownDialog.cpp

@@ -78,7 +78,7 @@ ShutdownDialog::ShutdownDialog()
         auto action = options[i];
         auto& radio = right_container.add<GUI::RadioButton>();
         radio.set_enabled(action.enabled);
-        radio.set_text_deprecated(action.title);
+        radio.set_text(String::from_deprecated_string(action.title).release_value_but_fixme_should_propagate_errors());
 
         radio.on_checked = [this, i](auto) {
             m_selected_option = i;
@@ -97,13 +97,13 @@ ShutdownDialog::ShutdownDialog()
     button_container.set_layout<GUI::HorizontalBoxLayout>();
     button_container.layout()->set_spacing(5);
     button_container.layout()->add_spacer();
-    auto& ok_button = button_container.add<GUI::Button>("OK");
+    auto& ok_button = button_container.add<GUI::Button>(String::from_utf8_short_string("OK"sv));
     ok_button.set_fixed_size(80, 23);
     ok_button.on_click = [this](auto) {
         done(ExecResult::OK);
     };
     ok_button.set_default(true);
-    auto& cancel_button = button_container.add<GUI::Button>("Cancel");
+    auto& cancel_button = button_container.add<GUI::Button>(String::from_utf8_short_string("Cancel"sv));
     cancel_button.set_fixed_size(80, 23);
     cancel_button.on_click = [this](auto) {
         done(ExecResult::Cancel);

Userland/Services/Taskbar/TaskbarButton.cpp

@@ -93,20 +93,20 @@ void TaskbarButton::paint_event(GUI::PaintEvent& event)
 
     Gfx::StylePainter::paint_button(painter, rect(), palette(), button_style(), is_being_pressed(), is_hovered(), is_checked(), is_enabled());
 
-    if (text_deprecated().is_empty())
+    if (text().is_empty())
         return;
 
     auto content_rect = rect().shrunken(8, 2);
     auto icon_location = content_rect.center().translated(-(icon.width() / 2), -(icon.height() / 2));
-    if (!text_deprecated().is_empty())
+    if (!text().is_empty())
         icon_location.set_x(content_rect.x());
 
-    if (!text_deprecated().is_empty()) {
+    if (!text().is_empty()) {
         content_rect.translate_by(icon.width() + 4, 0);
         content_rect.set_width(content_rect.width() - icon.width() - 4);
     }
 
-    Gfx::IntRect text_rect { 0, 0, static_cast<int>(ceilf(font.width(text_deprecated()))), font.glyph_height() };
+    Gfx::IntRect text_rect { 0, 0, static_cast<int>(ceilf(font.width(text()))), font.glyph_height() };
     if (text_rect.width() > content_rect.width())
         text_rect.set_width(content_rect.width());
     text_rect.align_within(content_rect, text_alignment());
@@ -123,7 +123,7 @@ void TaskbarButton::paint_event(GUI::PaintEvent& event)
             adjusted_rect.set_width(adjusted_rect.width() + 1);
             adjusted_rect.set_height(adjusted_rect.height() + 1);
         }
-        paint_custom_progressbar(painter, adjusted_rect, text_rect, palette(), 0, 100, window.progress().value(), text_deprecated(), font, text_alignment());
+        paint_custom_progressbar(painter, adjusted_rect, text_rect, palette(), 0, 100, window.progress().value(), text(), font, text_alignment());
     }
 
     if (is_enabled()) {

Userland/Services/Taskbar/TaskbarWindow.cpp

@@ -114,7 +114,7 @@ void TaskbarWindow::add_system_menu(NonnullRefPtr<GUI::Menu> system_menu)
 {
     m_system_menu = move(system_menu);
 
-    m_start_button = GUI::Button::construct("Serenity");
+    m_start_button = GUI::Button::construct(String::from_utf8("Serenity"sv).release_value_but_fixme_should_propagate_errors());
     set_start_button_font(Gfx::FontDatabase::default_font().bold_variant());
     m_start_button->set_icon_spacing(0);
     auto app_icon = GUI::Icon::default_icon("ladyball"sv);
@@ -202,7 +202,7 @@ void TaskbarWindow::update_window_button(::Window& window, bool show_as_active)
     auto* button = window.button();
     if (!button)
         return;
-    button->set_text_deprecated(window.title());
+    button->set_text(String::from_deprecated_string(window.title()).release_value_but_fixme_should_propagate_errors());
     button->set_tooltip(window.title());
     button->set_checked(show_as_active);
     button->set_visible(is_window_on_current_workspace(window));