Yeah that too, I kinda somewhat planned to redo that Antimatter Material List a little, or at the very least to automate it much better, by copying the stats of whatever Regular Matter they are counterpart of.
Also fun random thing I just thought about, the real Life Matter has Protons as Positive and Electrons as Negative, this does not make sense at all, because a Proton without an Electron should be negatively charged in the sense of “lacking” an Electron, while Electrons are Positive, but again real Life has it named the other way around meaning the Matter we are made of is actually Antimatter!