Turned out not to be as big a problem as I thought it might be thanks to AI's Distort filter. Took a few tries to get it right but here we go. It didn't look right in the old color so I changed it to gray, along with the window frame and switched from a radial gradient to a linear one, which is what I should have used in the first place. I took the numbers off too, they seemed unnecessary.
FYI, I still have all the other iterations saved as-is so it's no big deal to serve up whatever version is decided upon for the final.
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