Notation Editor problem.

Hi All, I've recently been using (& getting more familiar with) the Notation Editor - which I think is really terrific, by the way. When I started, last week, the stave background area was a nice, soothing yellow colour. But I seem to have turned it off & now the score is just in black & white. Have tried but can't seem to get the colour back. Does anyone know what I have done wrong? Many thanks.

Hmmm ... I dunno, but you could try reselecting the Default theme (or whichever you are using) from the Options menu ...

The time/loop selection gives the staves a yellowish background, so perhaps you had the entire duration of the project selected?