`ColorPicker` remove unused children and fix sample bugs.

Remove an unused `VBoxContainer`.
Remove 3 unused children from grid (Label, Slider, SpinBox).
Ignore sample input when old color is not displayed.
Fix current color overbright position.

scene/gui/color_picker.cpp

@@ -1258,6 +1258,10 @@ void ColorPicker::_update_text_value() {
 }
 
 void ColorPicker::_sample_input(const Ref<InputEvent> &p_event) {
+	if (!display_old_color) {
+		return;
+	}
+
 	const Ref<InputEventMouseButton> mb = p_event;
 	if (mb.is_valid() && mb->is_pressed() && mb->get_button_index() == MouseButton::LEFT) {
 		const Rect2 rect_old = Rect2(Point2(), Size2(sample->get_size().width * 0.5, sample->get_size().height * 0.95));
@@ -1310,7 +1314,7 @@ void ColorPicker::_sample_draw() {
 
 	if (color.r > 1 || color.g > 1 || color.b > 1) {
 		// Draw an indicator to denote that the new color is "overbright" and can't be displayed accurately in the preview.
-		sample->draw_texture(theme_cache.overbright_indicator, Point2(uv_edit->get_size().width * 0.5, 0));
+		sample->draw_texture(theme_cache.overbright_indicator, Point2(display_old_color ? sample->get_size().width * 0.5 : 0, 0));
 	}
 }
 
@@ -2269,17 +2273,10 @@ ColorPicker::ColorPicker() {
 	mode_popup->set_item_checked(current_mode, true);
 	mode_popup->set_item_checked(MODE_MAX + 1, true);
 	mode_popup->connect(SceneStringName(id_pressed), callable_mp(this, &ColorPicker::_set_mode_popup_value));
-	VBoxContainer *vbl = memnew(VBoxContainer);
-	real_vbox->add_child(vbl);
-
-	VBoxContainer *vbr = memnew(VBoxContainer);
-
-	real_vbox->add_child(vbr);
-	vbr->set_h_size_flags(SIZE_EXPAND_FILL);
 
 	slider_gc = memnew(GridContainer);
 
-	vbr->add_child(slider_gc);
+	real_vbox->add_child(slider_gc);
 	slider_gc->set_h_size_flags(SIZE_EXPAND_FILL);
 	slider_gc->set_columns(3);
 
@@ -2291,7 +2288,7 @@ ColorPicker::ColorPicker() {
 
 	hex_hbc = memnew(HBoxContainer);
 	hex_hbc->set_alignment(ALIGNMENT_BEGIN);
-	vbr->add_child(hex_hbc);
+	real_vbox->add_child(hex_hbc);
 
 	hex_hbc->add_child(memnew(Label(ETR("Hex"))));
 

scene/gui/color_picker.h

@@ -38,6 +38,7 @@
 class AspectRatioContainer;
 class ColorMode;
 class ColorPickerShape;
+class FileDialog;
 class GridContainer;
 class HSlider;
 class Label;
@@ -49,7 +50,6 @@ class PopupMenu;
 class SpinBox;
 class StyleBoxFlat;
 class TextureRect;
-class FileDialog;
 
 class ColorPresetButton : public BaseButton {
 	GDCLASS(ColorPresetButton, BaseButton);
@@ -104,7 +104,7 @@ public:
 		SHAPE_MAX
 	};
 
-	static const int SLIDER_COUNT = 4;
+	static const int SLIDER_COUNT = 3;
 
 private:
 	enum class MenuOption {