Yes. Lithium Sunset is a line I had.
The short story is:
1. Speckled Roman and Northern lights are it's two most important ancestors.
2. I considered the variety to have 2 main shortcomings, which is why I never formally released it -- First, it has very short shelf life, and as a farmer, this was very frustrating. Second, the shape was very variable, and that didn't go over well when it came time to sell the tomatoes. A few mis-shapen tomatoes are OK with my main buyer, but mis-shapen seemed to be the rule with Lithium Sunset.
3. I kept working on developing a variety with the same color combination and flavor, but with more uniform and round shape, and with better shelf-life. The result is
Yellow Jazz, which will be available soon.
Another Yellow Jazz photo
And one more photo