Red (strings): #f24840
Green (variables): #96c22e
White (text): #ffffff
Grey (background): #222222
It was based on my terminal color scheme (named "Solarized Darcula"—not sure where I found it) and the way vim happens to color my Go code.
Red (strings): #f24840
Green (variables): #96c22e
White (text): #ffffff
Grey (background): #222222