This site looks different today, and that was not the plan when I sat down with my coffee.
For weeks I had known that the Photos and Archive pages were broken. Both quietly served up the home page instead of my photos or a dated list of everything I ever posted. Nothing crashed, nothing warned me. The pages just answered the wrong question, which is the kind of bug that is easy to keep postponing. Today I gave it a coffee break.
The micro.blog help forum offered three things to try, so I tried them in order. A newer version of Hugo: no effect. Disabling my custom theme: no effect. Installing and activating a new theme plugin: both pages came back to life.
The plugin I picked more or less at random was Mythos by Matt Langford, and I like it enough to keep it. So this is the new look now. I might bring back a few orange details later.
What I still do not have is an explanation. Three changes went in, one of them fixed it, and I have no idea which of the other two was innocent. My pages work and my curiosity does not. For a coffee break, that is a fair trade.