denetii

import bpy
from bpy.props import *

# New texture slot class
class LegacyTextureSlot(bpy.types.PropertyGroup):
    texture = PointerProperty(type=bpy.types.Texture)
    name = StringProperty(name="Name", description="Name for this texture slot")
    uv_layer = StringProperty(name="UV Slot")
    
bpy.utils.register_class(LegacyTextureSlot)