Help With Jefferson Nickels Toning Info

Note all colors of toning look nice. When a coin is toned lightly, they are usually natural toning from being in the cello a long time. But value is in the eye of the beholder. I've saved a few aside that show a light toning. But the ugly ones I don't like. Here is one posted one time that is pretty:

But the ones with too much color I feel are artificially toned. They are usually a darker blue and often a current date. When a seller has many to sell, I feel he is creating these and I ignore them. In fact I don't have an image to show of that type as I'm not interested in these. I bought a roll of 1955-S that someone toned by heating them over a candle. They show a lot of blues, greens and yellows. But are ruined in my eyes. I put them aside in 2X2's. Why? At that time I wasted a lot of 2X2's that I wonder why I did that now. Live and learn.