Add a variable in Global for setting file dialogs as native, and add a "FileDialogs" node group

This settings is not exposed in the preferences in this commit

src/Autoload/Global.gd

@@ -148,16 +148,23 @@ var integer_zoom := false:
 			zoom_slider.step = 1
 		zoom_slider.value = zoom_slider.value  # to trigger signal emission
 
-## Found in Preferences. The scale of the Interface.
+## Found in Preferences. The scale of the interface.
 var shrink := 1.0
-## Found in Preferences. The font size used by the Interface.
+## Found in Preferences. The font size used by the interface.
 var font_size := 16:
 	set(value):
 		font_size = value
 		control.theme.default_font_size = value
 		control.theme.set_font_size("font_size", "HeaderSmall", value + 2)
-## Found in Preferences. If [code]true[/code], the Interface dims on popups.
+## Found in Preferences. If [code]true[/code], the interface dims on popups.
 var dim_on_popup := true
+var use_native_file_dialogs := false:
+	set(value):
+		use_native_file_dialogs = value
+		if not is_inside_tree():
+			await tree_entered
+			await get_tree().process_frame
+		get_tree().set_group(&"FileDialogs", "use_native_dialog", value)
 ## Found in Preferences. The modulation color (or simply color) of icons.
 var modulate_icon_color := Color.GRAY
 ## Found in Preferences. Determines if [member modulate_icon_color] uses custom or theme color.
@@ -1055,6 +1062,7 @@ func create_ui_for_shader_uniforms(
 				file_dialog.access = FileDialog.ACCESS_FILESYSTEM
 				file_dialog.size = Vector2(384, 281)
 				file_dialog.file_selected.connect(file_selected.bind(u_name))
+				file_dialog.use_native_dialog = use_native_file_dialogs
 				var button := Button.new()
 				button.text = "Load texture"
 				button.pressed.connect(file_dialog.popup_centered)

src/Palette/EditPaletteDialog.tscn

@@ -115,7 +115,7 @@ text = "Delete Palette?"
 horizontal_alignment = 1
 vertical_alignment = 1
 
-[node name="ExportFileDialog" type="FileDialog" parent="."]
+[node name="ExportFileDialog" type="FileDialog" parent="." groups=["FileDialogs"]]
 size = Vector2i(677, 400)
 access = 2
 filters = PackedStringArray("*.png ; PNG Image", "*.jpg,*.jpeg ; JPEG Image", "*.webp ; WebP Image")

src/Preferences/PreferencesDialog.tscn

@@ -1320,7 +1320,7 @@ grow_horizontal = 2
 grow_vertical = 2
 mouse_filter = 2
 
-[node name="AddExtensionFileDialog" type="FileDialog" parent="Popups"]
+[node name="AddExtensionFileDialog" type="FileDialog" parent="Popups" groups=["FileDialogs"]]
 mode = 1
 title = "Open File(s)"
 size = Vector2i(560, 400)

src/Tools/3DTools/3DShapeEdit.tscn

@@ -773,7 +773,7 @@ script = ExtResource("5")
 wait_time = 0.2
 one_shot = true
 
-[node name="LoadModelDialog" type="FileDialog" parent="." index="6"]
+[node name="LoadModelDialog" type="FileDialog" parent="." index="6" groups=["FileDialogs"]]
 mode = 1
 title = "Open File(s)"
 size = Vector2i(558, 300)

src/UI/Dialogs/ExportDialog.tscn

@@ -306,7 +306,7 @@ offset_right = 692.0
 offset_bottom = 551.0
 mouse_filter = 2
 
-[node name="PathDialog" type="FileDialog" parent="Popups"]
+[node name="PathDialog" type="FileDialog" parent="Popups" groups=["FileDialogs"]]
 mode = 2
 title = "Open a Directory"
 size = Vector2i(675, 500)

src/UI/Dialogs/ImageEffects/ShaderEffect.tscn

@@ -53,7 +53,7 @@ text = "No shader loaded!"
 [node name="ShaderParams" type="VBoxContainer" parent="VBoxContainer"]
 layout_mode = 2
 
-[node name="FileDialog" type="FileDialog" parent="."]
+[node name="FileDialog" type="FileDialog" parent="." groups=["FileDialogs"]]
 access = 2
 filters = PackedStringArray("*gdshader; Godot Shader File")
 show_hidden_files = true

src/UI/Dialogs/OpenSprite.tscn

@@ -1,6 +1,6 @@
 [gd_scene format=3 uid="uid://b3aeqj2k58wdk"]
 
-[node name="OpenSprite" type="FileDialog"]
+[node name="OpenSprite" type="FileDialog" groups=["FileDialogs"]]
 title = "Open File(s)"
 size = Vector2i(558, 400)
 exclusive = false

src/UI/Dialogs/SaveSprite.tscn

@@ -1,6 +1,6 @@
 [gd_scene format=3 uid="uid://d4euwo633u33b"]
 
-[node name="SaveSprite" type="FileDialog"]
+[node name="SaveSprite" type="FileDialog" groups=["FileDialogs"]]
 size = Vector2i(675, 400)
 exclusive = false
 popup_window = true