The MO user's page has a button flair. I didn't know where and how to test it. Thus I have to decided to do it here, at least temporarily. I have copied the snipped mentioned in the explanation (if it works then you may try it too), and let's see what happens:
It works! ...except that I don't see how to change my flair, i.e. the color. But at least let me change the size:
Great, but where is the rest of my last name. Let me fix it (it'll be a patch): ...--no, I don't know how to do it. Well, it was fun, I guess. Now my:
META-QUESTION Should I remove this post?
EDIT Now I might change the color (after another look at the same instruction, this time thanks to @Emil--thank you):
YES!!! :-) Inside the snippet, at the end of the image URL, say:
one needs to add "?theme=dark" (for a dark flair), so that the needed resulting image link would be: