I believe Rockwood started with the Newport Ash in 2021, though I am not certain. I didn't like the Ash interior, either ... though have come to appreciate and like it.
Here are a couple I found with the darker interior - not sure how they are configured, or how far from Houston, but it's a starting point.
I am not sure, but when I was looking for my 235s, I believe I was seeing some new Shamrocks still with the darker color interior, while the Roo was changed over first. Likely just date change/listing errors though, as they're made on the same line and were likely changed at the same time.
Good luck. I'll keep my eyes peeled for you.