### Godot version

v4.3.dev.custom_build [d76c1d0e5]

### System information

Linux

### Issue description

When opening the color picker by clicking on a color property the color changes slightly.

### Steps to reproduce

* Click on a property with value `Color(.5, .5, .5) ` in the inspector
* Click away
* Open the color picker again
* See the color change to Color(0.502, 0.502, 0.502) in the "RAW" tab

### Minimal reproduction project

[ColorChangeBug.zip](https://github.com/godotengine/godot/files/13545089/ColorChangeBug.zip)

preset_color = p_color;
}
Color ColorPresetButton::get_preset_color() const {
	return preset_color;
}
void ColorPresetButton::_bind_methods() {
	BIND_THEME_ITEM_CUSTOM(Theme::DATA_TYPE_STYLEBOX, ColorPresetButton, foreground_style, "preset_fg");
	BIND_THEME_ITEM_CUSTOM(Theme::DATA_TYPE_ICON, ColorPresetButton, background_icon, "preset_bg");
	BIND_THEME_ITEM(Theme::DATA_TYPE_ICON, ColorPresetButton, overbright_indicator);
}
ColorPresetButton::ColorPresetButton(Color p_color, int p_size) {
	preset_color = p_color;
	set_toggle_mode(true);
	set_custom_minimum_size(Size2(p_size, p_size));
}
ColorPresetButton::~ColorPresetButton() {
}