Question Writer Manual/Quiz Options/Advanced Settings/Theme Images
If you have the Professional Version of Question Writer you can add your own background image or piece of Flash in place of the one from the theme. See also Background Image.
Override Loader Image
You can also use your own loader image - this is the image or Flash the quiz taker will see while the quiz is loading. See also Loader Image.
Jpeg Image Quality
You can choose which version of Flash your images will be saved and published as - by selecting from the drop down box. The higher the version number that you select, the better the image quality will be.