Maybe you did not read. Here is copy-paste for you:
cool-retro-term
"cool-retro-term is a terminal emulator which mimics the look and feel of the old cathode tube screens. It has been designed to be eye-candy, customizable, and reasonably lightweight."
So:
a) It's supposed to be a "terminal emulator."
b) It does not automatically convert the atoms that make your fancy iMac with retina display into a CRT from the 70s, nor it makes you travels back in time. File a bug for that. However, it does say that it "mimics" it.
cool-retro-term
"cool-retro-term is a terminal emulator which mimics the look and feel of the old cathode tube screens. It has been designed to be eye-candy, customizable, and reasonably lightweight."
So:
a) It's supposed to be a "terminal emulator."
b) It does not automatically convert the atoms that make your fancy iMac with retina display into a CRT from the 70s, nor it makes you travels back in time. File a bug for that. However, it does say that it "mimics" it.