"Natural texture pack" stone/cobblestone too similar

The natural texture pack looks great! And look, we all know that hideous-looking cobblestone is a vaunted MC tradition at this point. But stone should be easy on the eyes. I had to mine some with a silk touch pickaxe and place it next to cobblestone and double check just to make sure I wasn't missing something. Verily I say, being able to place a neutral, pleasant, abundantly cheap and resillient block like stone is the reward for obtaining your first silk touch enchantment. Great work on the pack, though. It's the bees knees.