I skimmed, it seems to be marketing for confusing terminology > Brown Language: A language that you are more likely to use in existing software maintenance. Th

I skimmed, it seems to be marketing for confusing terminology > Brown Language: A language that you are more likely to use in existing software maintenance. These projects are often called brown-field projects. > Green Language: A language that you are more likely to use in a new green-field project. My first thought of a "green" language was one that was the most energy efficient. They can have the "brown" language terminology but not green. Its also strange to use a color label for something that can be thought of in temperature, their "green" is just about the hot new language, which all of the brown languages were at one time.