Minecraft world edit mod in 1.12.2?

I have downloaded the mod "world edit" for the version 1.12.2 and actually everything works fine.

However, I do not know how I can use it with concrete. The command "// set concrete" works. Then comes white concrete. But how can I put light gray? I've already tried a few commands and nothing worked!

// set concrete: hierdiefarbe

should work.

// set concrete: light_grey e.g.

I just tried it…

Unfortunately it does not work

Try // set light_gray_concrete

I mean Minecraft would have changed a lot in 1:12.
Otherwise try with IDs would have to be // set 159: 8.

Thanks a lot!

Does not work either… 😑

But thanks for the tips! I finally found out… It was id 251: 8! 😋

After all, the real ones change everything haha.