Dragged nodes have no icon size limit in script editor

[KoBeWi]

Godot version

4.1

System information

Windows 10.0.19045 - Vulkan (Forward+) - dedicated NVIDIA GeForce GTX 1060 (NVIDIA; 30.0.15.1403) - Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz (8 Threads)

Issue description

godot_WLmiQBv0SM.mp4

We correctly clamp the size to 16x16 everywhere except here (probably).

Steps to reproduce

1. Add a class with custom icon, e.g.

@icon("res://icon.svg")
extends Node
class_name Icon

2. Add it to scene
3. Open Script Editor and drag the node to script editor

Minimal reproduction project

N/A

[YuriSizov]

Relevant part is here:

godot/editor/gui/scene_tree_editor.cpp

Lines 1202 to 1224 in bbb1100

	VBoxContainer *vb = memnew(VBoxContainer);
	Array objs;
	int list_max = 10;
	float opacity_step = 1.0f / list_max;
	float opacity_item = 1.0f;
	for (int i = 0; i < selected_nodes.size(); i++) {
	if (i < list_max) {
	HBoxContainer *hb = memnew(HBoxContainer);
	TextureRect *tf = memnew(TextureRect);
	tf->set_texture(icons[i]);
	tf->set_stretch_mode(TextureRect::STRETCH_KEEP_CENTERED);
	hb->add_child(tf);
	Label *label = memnew(Label(selected_nodes[i]->get_name()));
	hb->add_child(label);
	vb->add_child(hb);
	hb->set_modulate(Color(1, 1, 1, opacity_item));
	opacity_item -= opacity_step;
	}
	NodePath p = selected_nodes[i]->get_path();
	objs.push_back(p);
	}
	set_drag_preview(vb);

Related to the second commit in #75472.