I wonder if anyone knows how many active installs TT1 (the last classic default theme) had after being the default theme for the same amount of time that TT3 has now been the default. How do they compare? With FSE, it could be that individual themes are becoming less relevant. Block themes provide the initial styling and beyond that a lot of what the theme defines (not everything but the gap is narrowing) can be edited using a uniform set of tools, so making the theme less relevant. I don’t agree that the data in Hendrik Luehrsen’s spreadsheet shows block theme usage is definitely stagnating. I agree it shows that it could be stagnating, but with a lot of missing data pre-July 2023, it’s not possible to say definitively looking at a snapshot of 3 months out of 20 where we don’t have the data from 17 of those months.