I think it was a last minute change and he left it in to avoid any problems due to non-updated references to that item spot.
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Statistics show that people who tell others they need to get a new computer are twice as likely to use "gay" as a negative descriptor and will most likely never see genitals in real life, at least while not in prison.
Before 12w21a was released, Jeb had been working on Rubies. However, he decided to change them to Emeralds at the last moment, so the Ruby texture was left in there. He did not remove the texture because he has stated that he would like to add rubies in the future.
I was working on/updating my texture pack and noticed both currencies are in the items.png
(Ignore the Key Lime Pie cake)
Maybe one will be a second currency?
Maybe one will become a new ore?
Maybe one will be removed in the next update?
Maybe it's a case of the Quiver/Sponge and it will be there with no use?
way to state something that would be the most obvious first thought.
Rubies are also good for lasers.
--AzemOcram, I discovered signatures!
Like said in the OP, it is probably like that because he was working on textures for a texture pack and he changed the cake texture.
A fashionable hat!
Jeb, get working on it NOW!
oh that's from my texture pack
it's a key lime pie in progress ._.
--AzemOcram, I discovered signatures!