M C Squared

-Made square: Hunger bars, Sniffer Egg, normal and Mossy Cobblestone, Lilac, Open Eye Blossom, Lily of the Valley, Mangrove Roots, Red Mushroom Block, Sculk Vein and Shrieker, Spore Blossom, Trial Spawner skulls, End Portal Frame, GUI Armor Stand, Powder Snow Bucket, GUI Painting, Harness, Barrel, Chorus Fruit flower, Cave Vines, Azure Bluet, Fletching Table, Hopper and Cauldron detailing, Smoker top, Rabbit Hide, normal and Recovery Compass, Clock (but it looks bad), and GUI Boat oars.
-Made more square: Flint and Steel, Flint, Raw and Cooked Rabbit meat, Raw and Cooked Chicken meat, Turtle Scute, Raw Gold and Copper, GUI Kelp, Poisonous Potato, Bone Meal, Sugar, Gunpowder, Redstone, Glowstone, normal and Glow Squids, normal and Glow Item Frames, Leather, Rabbit Foot, normal and Golden Carrots, and normal and Glow Ink Sac.
-Made more accurate to vanilla: Raw Cod and Salmon Bucket and food icons.
-Improved in other ways: Bread, Potions, Cooked and Raw Beef and Porkchop.