To change all of your field editors, clone your theme and change it in the theme builder.

To change just one field editor, give your field editor a CSS class (like “make-my-background-white” or something) and put some custom CSS on your page, like this:

&#46;make-my-background-white &#46;nx-basicfieldeditor-section-header, &#46;make-my-background-white &#46;nx-basicfieldeditor-item {<br />&nbsp; &nbsp; &nbsp;background: white;<br />} 

(This assumes you want both the header and the field area backgrounds to both be white)