Plain Ol’ Concrete

This mod replaces the crafting recipes for Gray and Light Gray Concrete to allow their crafting without dye. Light Gray Concrete is now crafted from five Sand and four Gravel and Gray Concrete is now crafted from four Sand and five Gravel. This allows you to craft a significant number of these types of concrete without farming dye. In real life, Concrete is by default gray, and Minecraft should reflect this.