Make custom leaves use the ColorMap[1.16.5]

Hi! I have created a custom grass block and want it to be coloured like the normal one. 

How to make this?

This is my Leaves Class

public class FlameBlock extends Block {
    public FlameBlock(Properties Properties) {
        super(Properties);
    }

    @Override
    public int getFlammability(BlockState state, IBlockReader world, BlockPos pos, Direction face) {
        {
            return 75;
        }
    }

    @Override
    public boolean isFlammable(BlockState state, IBlockReader world, BlockPos pos, Direction face)
    {
        return true;
    }

    @Override
    public int getFireSpreadSpeed(BlockState state, IBlockReader world, BlockPos pos, Direction face) {
        return 30;

    }
    @Override
    public void catchFire(BlockState state, World world, BlockPos pos, @Nullable Direction face, @Nullable LivingEntity igniter) {
        super.catchFire(state, world, pos, face, igniter);
    }
    @Override
    public boolean isBurning(BlockState state, IBlockReader world, BlockPos pos) {
        return true;
    }
}

English is not my native language

Edited July 13, 20223 yr by toad132