feat: support no 'non-color' setup

io_scene_vrm/importer/gltf2_addon_vrm_importer.py

@@ -115,7 +115,29 @@ def assign_texture(
         if isinstance(source, int):
             image = self.images.get(source)
             if image:
-                image.colorspace_settings.name = texture.colorspace
+                # https://github.com/saturday06/VRM-Addon-for-Blender/issues/336#issuecomment-1760729404
+                colorspace_settings = image.colorspace_settings
+                name_property = colorspace_settings.bl_rna.properties["name"]
+                if isinstance(name_property, bpy.types.EnumProperty):
+                    identifiers = [
+                        enum_item.identifier for enum_item in name_property.enum_items
+                    ]
+                    non_color = "Non-Color"
+                    generic_data = "Generic Data"
+                    if texture.colorspace in identifiers:
+                        colorspace_settings.name = texture.colorspace
+                    elif (
+                        texture.colorspace == non_color and generic_data in identifiers
+                    ):
+                        colorspace_settings.name = generic_data
+                    else:
+                        logger.error(
+                            f"image.colorspace_settings.name doesn't support {texture.colorspace}."
+                            + f" Supported colorspaces are {identifiers}"
+                        )
+                else:
+                    logger.error("image.colorspace_settings.name is not a EnumProperty")
+
                 texture.source = image
 
         sampler = texture_dict.get("sampler")