GrinderRecipeConfiguration.json

{
    "version": "1", // never change this, internal version number
    "timeInSecondsToGrindGreenDiamond": 10, // how long it takes to grind green diamond
    "timeInSecondsToGrindBlueDiamond": 15, // how long it takes to grind blue diamond
    "timeInSecondsToGrindRedDiamond": 20 // how long it takes to grind red diamond
}