### Godot version

v4.2.dev3.official [013e8e3af]

### System information

Windows 11, Core i5-12400F, RX 6600

### Issue description

TileSet->Setup->Separation maybe should have "px" like rest?
![Screenshot 2023-08-21 162202](https://github.com/godotengine/godot/assets/962340/3c6b9a97-7520-4610-8153-7882cc9c303f)
I know this is pixels from testing it.

TileSet->Select is this Animation Separation "px" too? idk
![Screenshot 2023-08-21 162131](https://github.com/godotengine/godot/assets/962340/fcb580e3-9ff7-41d8-92d3-e585841d3803)
I tried setting up animation separation and got a not enough room error, so maybe not "px". idk


Thanks.


### Steps to reproduce

- open TileSet->Setup->Separation, note some have "px" and one doesn't
- open TileSet->Select, is this separation "px" too?


### Minimal reproduction project

n/a
clr = get_theme_color(SNAME("font_focus_color"));
				} else {
					clr = get_theme_color(SNAME("font_color"));
				}
		}
	}
	Size2 size = tile_data_editor_dropdown_button->get_size();
	Point2 ofs;
	if (is_layout_rtl()) {
		ofs = Point2(get_theme_constant(SNAME("arrow_margin"), SNAME("OptionButton")), int(Math::abs((size.height - arrow->get_height()) / 2)));
	} else {
		ofs = Point2(size.width - arrow->get_width() - get_theme_constant(SNAME("arrow_margin"), SNAME("OptionButton")), int(Math::abs((size.height - arrow->get_height()) / 2)));
	}
	arrow->draw(ci, ofs, clr);
}
void TileSetAtlasSourceEditor::_tile_data_editor_dropdown_button_pressed() {
	Size2 size = tile_data_editor_dropdown_button->get_size();
	tile_data_editors_popup->set_position(tile_data_editor_dropdown_button->get_screen_position() + Size2(0, size.height * get_global_transform().get_scale().y));
	tile_data_editors_popup->set_size(Size2(size.width, 0));
	tile_data_editors_popup->popup();
}
void TileSetAtlasSourceEditor::_tile_data_editors_tree_selected() {
	tile_data_editors_popup->call_deferred(SNAME("hide"));
	_update_current_tile_data_editor();
	tile_atlas_control->queue_redraw();
	tile_atlas_control_unscaled->queue_redraw();
	alternative_tiles_control->queue_redraw();
	alternative_tiles_control_unscaled->queue_redraw();
}
void TileSetAtlasSourceEditor::_update_atlas_view() {