After bookmarking a page in Micro.Blog I was stumped about how to Highlight a section. I tried for a while then gave up. Today I tried again, searched fruitlessly for instructions.

Finally I tried unchecking Enabled in the Stop The Madness extension. Success: a Highlight 'button' appeared.

Highlighted text with a Highlight button.
Stop the Madness Options screen, with Enabled unchecked.