I don't think Tesla will do green or any other bright colors. They will rightly play it conservatively. But they did offer a creative color palette for the Roadster and color preferences do change over time, For example, silver was the top selling color 5 years ago and it has now dropped down to 4/5 position. And my understanding is that silver is the least popular color for the model 3. Blue was no where to be seen a few years ago as a preference but today it is at or near the top. Green is a low preference right now because no one offers a choice of green. Which comes first, the chicken or the egg? Things change and I would like to see Tesla offer a couple more creative colors (at a premium price). If there are people willing to pay $5K+ for a custom wrap, then there is a market.