Add an Apply button to the font size slider in the Preferences, fix display scale not being applied on startup

src/Autoload/Global.gd

@@ -188,13 +188,7 @@ var integer_zoom := false:
 ## Found in Preferences. The scale of the interface.
 var shrink := 1.0
 ## Found in Preferences. The font size used by the interface.
-var font_size := 16:
-	set(value):
-		if font_size == value:
-			return
-		font_size = value
-		control.theme.default_font_size = value
-		control.theme.set_font_size("font_size", "HeaderSmall", value + 2)
+var font_size := 16
 ## Found in Preferences. If [code]true[/code], the interface dims on popups.
 var dim_on_popup := true
 ## Found in Preferences. If [code]true[/code], the native file dialogs of the

src/Main.gd

@@ -32,7 +32,6 @@ func _init() -> void:
 
 func _ready() -> void:
 	get_tree().set_auto_accept_quit(false)
-	_setup_application_window_size()
 
 	Global.main_window.title = tr("untitled") + " - Pixelorama " + Global.current_version
 
@@ -66,6 +65,8 @@ or CLI exporting. Loading pxo files in Pixelorama does not need this option to b
 	if OS.get_name() == "Android":
 		OS.request_permissions()
 	_handle_backup()
+	await get_tree().process_frame
+	_setup_application_window_size()
 	_show_splash_screen()
 	Global.pixelorama_opened.emit()
 
@@ -120,6 +121,9 @@ func _setup_application_window_size() -> void:
 	# Set a minimum window size to prevent UI elements from collapsing on each other.
 	root.min_size = Vector2(1024, 576)
 	root.content_scale_factor = Global.shrink
+	if Global.font_size != theme.default_font_size:
+		theme.default_font_size = Global.font_size
+		theme.set_font_size("font_size", "HeaderSmall", Global.font_size + 2)
 	set_custom_cursor()
 
 	if OS.get_name() == "Web":
@@ -164,7 +168,6 @@ func _show_splash_screen() -> void:
 	if Global.config_cache.get_value("preferences", "startup"):
 		# Wait for the window to adjust itself, so the popup is correctly centered
 		await get_tree().process_frame
-		await get_tree().process_frame
 
 		splash_dialog.popup_centered()  # Splash screen
 		modulate = Color(0.5, 0.5, 0.5)

src/Preferences/PreferencesDialog.gd

@@ -9,7 +9,7 @@ var preferences: Array[Preference] = [
 	),
 	Preference.new("ffmpeg_path", "Startup/StartupContainer/FFMPEGPath", "text", ""),
 	Preference.new("shrink", "%ShrinkSlider", "value", 1.0),
-	Preference.new("font_size", "Interface/InterfaceOptions/FontSizeSlider", "value", 16),
+	Preference.new("font_size", "%FontSizeSlider", "value", 16),
 	Preference.new(
 		"dim_on_popup", "Interface/InterfaceOptions/DimCheckBox", "button_pressed", true
 	),
@@ -196,7 +196,6 @@ var selected_item := 0
 @onready var language: VBoxContainer = %Language
 @onready var autosave_container: Container = right_side.get_node("Backup/AutosaveContainer")
 @onready var autosave_interval: SpinBox = autosave_container.get_node("AutosaveInterval")
-@onready var shrink_slider: ValueSlider = $"%ShrinkSlider"
 @onready var themes: BoxContainer = right_side.get_node("Interface/Themes")
 @onready var shortcuts: Control = right_side.get_node("Shortcuts/ShortcutEdit")
 @onready var tablet_driver_label: Label = $"%TabletDriverLabel"
@@ -233,7 +232,6 @@ func _ready() -> void:
 	# Replace OK since preference changes are being applied immediately, not after OK confirmation
 	get_ok_button().text = "Close"
 	get_ok_button().size_flags_horizontal = Control.SIZE_EXPAND_FILL
-	shrink_slider.value = Global.shrink  # In case shrink is not equal to 1
 
 	shortcuts.profile_option_button.item_selected.connect(func(_i): Tools.update_hint_tooltips())
 	if shortcuts.profile_option_button.selected != 0:
@@ -282,7 +280,7 @@ func _ready() -> void:
 		restore_default_button.default_value = pref.default_value
 		restore_default_button.require_restart = pref.require_restart
 		restore_default_button.node = node
-		if pref.node_path == "%ShrinkSlider":
+		if pref.node_path in ["%ShrinkSlider", "%FontSizeSlider"]:
 			# Add the default button to the shrink slider's grandparent
 			var node_position := node.get_parent().get_index()
 			node.get_parent().get_parent().add_child(restore_default_button)
@@ -379,7 +377,7 @@ func _on_List_item_selected(index: int) -> void:
 		child.visible = child.name == content_list[index]
 
 
-func _on_ShrinkApplyButton_pressed() -> void:
+func _on_shrink_apply_button_pressed() -> void:
 	var root := get_tree().root
 	root.content_scale_aspect = Window.CONTENT_SCALE_ASPECT_IGNORE
 	root.content_scale_mode = Window.CONTENT_SCALE_MODE_DISABLED
@@ -393,6 +391,11 @@ func _on_ShrinkApplyButton_pressed() -> void:
 	Global.camera.fit_to_frame(Global.current_project.size)
 
 
+func _on_font_size_apply_button_pressed() -> void:
+	Global.control.theme.default_font_size = Global.font_size
+	Global.control.theme.set_font_size("font_size", "HeaderSmall", Global.font_size + 2)
+
+
 func _on_language_pressed(index: int) -> void:
 	var locale := OS.get_locale()
 	if index > 1:

src/Preferences/PreferencesDialog.tscn

@@ -181,8 +181,13 @@ layout_mode = 2
 size_flags_horizontal = 3
 text = "Font size:"
 
-[node name="FontSizeSlider" type="TextureProgressBar" parent="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Interface/InterfaceOptions"]
+[node name="FontSizeContainer" type="HBoxContainer" parent="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Interface/InterfaceOptions"]
 layout_mode = 2
+
+[node name="FontSizeSlider" type="TextureProgressBar" parent="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Interface/InterfaceOptions/FontSizeContainer"]
+unique_name_in_owner = true
+layout_mode = 2
+size_flags_horizontal = 3
 focus_mode = 2
 mouse_default_cursor_shape = 2
 theme_type_variation = &"ValueSlider"
@@ -197,6 +202,11 @@ stretch_margin_right = 3
 stretch_margin_bottom = 3
 script = ExtResource("8")
 
+[node name="FontSizeApplyButton" type="Button" parent="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Interface/InterfaceOptions/FontSizeContainer"]
+layout_mode = 2
+mouse_default_cursor_shape = 2
+text = "Apply"
+
 [node name="DimLabel" type="Label" parent="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Interface/InterfaceOptions"]
 layout_mode = 2
 size_flags_horizontal = 3
@@ -1377,7 +1387,8 @@ vertical_alignment = 1
 [connection signal="visibility_changed" from="." to="." method="_on_PreferencesDialog_visibility_changed"]
 [connection signal="item_selected" from="HSplitContainer/List" to="." method="_on_List_item_selected"]
 [connection signal="pressed" from="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Language/System Language" to="." method="_on_language_pressed" binds= [1]]
-[connection signal="pressed" from="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Interface/InterfaceOptions/ShrinkContainer/ShrinkApplyButton" to="." method="_on_ShrinkApplyButton_pressed"]
+[connection signal="pressed" from="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Interface/InterfaceOptions/ShrinkContainer/ShrinkApplyButton" to="." method="_on_shrink_apply_button_pressed"]
+[connection signal="pressed" from="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Interface/InterfaceOptions/FontSizeContainer/FontSizeApplyButton" to="." method="_on_font_size_apply_button_pressed"]
 [connection signal="pressed" from="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Extensions/ExtensionsHeader/Explore" to="Store" method="_on_explore_pressed"]
 [connection signal="empty_clicked" from="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Extensions/InstalledExtensions" to="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Extensions" method="_on_InstalledExtensions_empty_clicked"]
 [connection signal="item_selected" from="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Extensions/InstalledExtensions" to="HSplitContainer/VBoxContainer/ScrollContainer/RightSide/Extensions" method="_on_InstalledExtensions_item_selected"]