[Solved] How to change the background color of the essay / long answer textbox?

The default setting for the background of the textbox is ‘transperant’.  You will have to setup some custom CSS code to get a color background – something like this:

.sg-question textarea {background-color: #ededed;}

Check the documentation for details – http://help.surveygizmo.com/help/article/link/css-class-names#how-to-find-the-css-selector