If you would like a little science with your diet of info here, there are reasons for gauge color and brightness. White light is cross of the entire light spectrum, that which we can see anyway. Visible light, that is. It's not the best for retaining night vision. The best light for night time is red as it won't ruin your night vision, which is important when driving. Of course, this doesn't look good on a lot of cars, and Jeeps seem to look nice with green. It's more of a blue-green, but anyway, green is the second best color of light to see in order to retain night vision. Blue, or the more intense blues like a lot of people install, is worse. Though it does look pretty cool.
That's the reason, btw, it ruins your night vision when someone comes over the hill with HID's that are very cool frequency light. That being a very blue tint. It's not even good for them as the light it pours over what's ahead of them is so blue that their night vision is impeded. I've never understood this. I think the regular white light headlights can be fine. Not that Jeeps have good ones, but you know what I mean. These blue supernovas people use blind the heck out of me, especially when they're aimed so that they go right into your eyes. That happens when they come over hills whether they want it or not. So it's frustrating.
Anyway, as to my point, are you doing this for looks or for function? Function and practicality would say leave them, but I understand aesthetics and have considered making mine blue LED's before. It's up to you. I don't think the stock green is at all bad though, nor is it difficult to see at night.