### Godot version

v4.1.dev.custom_build.a7276f1ce

### System information

Win10, AMD 2600, GeForce GTX 1060, Vulkan API 1.3.205

### Issue description

I can't get correct color data from an array of source_color type.
The color data is saved as **Color** in the file:
`shader_parameter/palette = [Color (1, 0, 0, 1), Color (0, 1, 0, 1), Color (0, 0, 1, 1)]`
Shouldn't it be saved as PackedColorArray?


### Steps to reproduce

1.Declare an array of source_color type.
2.Set colors.

### Minimal reproduction project

[shadertest.zip](https://github.com/godotengine/godot/files/11246504/shadertest.zip)

p_property.usage = PROPERTY_USAGE_NONE;
	}
	
	if (p_property.name == "alpha_antialiasing_edge" && !alpha_aa_enabled) {
		p_property.usage = PROPERTY_USAGE_NONE;
	}
	if (p_property.name == "blend_mode" && alpha_aa_enabled) {
		p_property.usage = PROPERTY_USAGE_NONE;
	}
	if ((p_property.name == "heightmap_min_layers" || p_property.name == "heightmap_max_layers") && !deep_parallax) {
		p_property.usage = PROPERTY_USAGE_NONE;
	}
	if (flags[FLAG_SUBSURFACE_MODE_SKIN] && (p_property.name == "subsurf_scatter_transmittance_color" || p_property.name == "subsurf_scatter_transmittance_texture")) {
		p_property.usage = PROPERTY_USAGE_NONE;
	}
	if (orm) {
		if (p_property.name == "shading_mode") {
			
			p_property.hint_string = "Unshaded,Per-Pixel";
		}
		if (p_property.name.begins_with("roughness") || p_property.name.begins_with("metallic") || p_property.name.begins_with("ao_texture")) {
			p_property.usage = PROPERTY_USAGE_NONE;
		}
	} else {
		if (p_property.name == "orm_texture") {
			p_property.usage = PROPERTY_USAGE_NONE;
		}
	}
	if (shading_mode != SHADING_MODE_PER_PIXEL) {
		if (shading_mode != SHADING_MODE_PER_VERTEX) {