Chris75 You can change the colors of the template in the admin section. Follow this link from a page in your wiki: [[/doku.php?id=wiki:welcome&do=admin&page=styling|Template Styling]]
michaelsy jimbo74 A wallpaper would be even more fancy. Any way to do so? Background images can be assigned to HTML elements using CSS. The background-image property is used for this purpose. Example Use userall.css to add a corresponding CSS rule. - Michael Sy.