the formatting buttons (B, I, U) are NOT intuitive. they should be: B, I, and U and NOT: A, A, and A !!!
I know we have a bug on this. Trying to find it...
*** This bug has been marked as a duplicate of 47685 ***
verified. Bug 47685 is "Editor formatting toolbar buttons have no toggled or disabled styles". Reporter email@example.com has leading comment: [...]"Also, we decided to use 'B', 'I' and 'U' in the bold, italics and underline buttons, instead of A, A and A."