DragController::concludeEditDrag() currently passes the string returned by Color::nameForRenderTreeAsText() to CSSStyleDeclaration::setProperty(). If the color has an alpha value, the string will be in #RRGGBBAA format which is not valid CSS.
Created attachment 82612 [details]
Comment on attachment 82612 [details]
Clearing flags on attachment: 82612
Committed r79145: <http://trac.webkit.org/changeset/79145>
All reviewed patches have been landed. Closing bug.