There was a time that blue sheet patterns were not available. (theinspiredroom.net)
I just want to say thank you for making me laugh with your comment that if you are using sheets, you suggest a flat white sheet rather than a fitted blue sheet! (theinspiredroom.net)
: blue sheets of paper describing souces in order of appearance in her video (2 sheets: text concept by Sondra Perry) (artist-info.com)