I agree with Cagey (and about the context too). "Bare" can have different meanings depending on the context and I think that the speaker is specifying that the meaning he means here is the one opposite to the word "dressed" (although quite what meaning that word itself has here is not clear without more context).Welcome to the forum, Noushin.
I assume that it is opposing the plain (bare) version to the fancy (dressed) version of something, but I can't say for certain without more context.
Could you please explain what this is about? What is Green, and what does it do? We need more context to be helpful. What we mean by context is explained here: Context and Background.