If you have a paid plan on your WordPress.com site than you can add custom CSS in the Customiser.
As I was writing that sentence it occurred to me that maybe that is not true for the new block-based themes with full site editing. Maybe it is only possible with classic themes and hybrid themes and not with universal themes.
Putting that little confusion to one side, I noticed today the words ‘See full history’, and if you click that you can see all the CSS you have previously added – and the theme you were using when you added it.
Here’s a more detailed explanation, starting with what you see (if you have a paid plan) when you click on the Customiser.
You see this
And if you click on ‘See full history’, a new page opens and you can see a clickable history of all the revisions, like this:
If you are like me, you might forget what the last theme was that you used, or the one before that. This is a way to find out. As you may be able to see, if you have good eyesight, is that I was previously using the Maywood theme.
Another way to remember what themes you were using previously is to make a note of the themes you use. I write them a post called ‘Do Not Publish This’ that I keep in draft..
Going a step further, you may have noticed that on this site I wrote the name of the current theme in the tag line, like this:
A Diary In Photography | Current theme is ‘Glen’
This is a post about WordPress. Are there no photographs? This is supposed to be a photography site! Where is the elephant?
Ah, here it is