tgstation/-tg-station — pull request #1911 by Giacom (2013-11-26 19:35:51+00:00)
Title: Virus symptom generation is less random...

...and you can determine the level of symptom you would get!

Virus food will generate low level symptoms. (i.e. Sneezing, Coughing)
Mutagen will generate medium level symptoms. (i.e. Vomiting)
Liquid Plasma will generate high level symptoms. (i.e. Choking)

Virologist starts with a small bottle of liquid plasma.
Filled in the gaps between the chem master with RGBA(255, 255, 255, 1) so you do not accidentally click on the floor anymore.
ChemMasters now has the green light overlay, which was only used by Pandemics, but it looks better than red.