How does NSFW blur work?

According to the linked issue on GitHub there have been changes to the NSFW blur.

To be honest I did not find an option to blur NSFW posts in the Jerboa settings. I did only find the checkbox to enable or disable NSFW posts all together.

Can you explain how to enable NSFW blur? Did I miss anything?

I'm using Jerboa 0.0.27 from F-Droid.