I will tell you what I did, and please let me know if this solution will not create a problem in the future.
1- I created a new theme following the directions here:
www.ari-soft.com/docs/ariquiz/html/ARI_Quiz_UserGuide.html?Otherreferences2.html
I ended up with something like this in the loader.php file
(defined('_JEXEC') && defined('ARI_FRAMEWORK_LOADED')) or die;
AriKernel::import('Application.ARIQuiz.ThemeLoader');
class AriQuizThemeLoader_Light extends AriQuizThemeLoader
{
function load()
{
parent::load();
$doc = JFactory::getDocument();
$theme = $this->getName();
$themeUri = JURI::root(true) . '/components/com_ariquiz/themes/' . $theme . '/';
$doc->addStyleSheet($themeUri . 'css/buttons.css?v=' . ARIQUIZ_VERSION);
$doc->addStyleSheet(JURI::root(true) . '/components/com_ariquiz/themes/' . $theme . '/css/overrides.css');
}
}
2- I copied yui.combo.css from /components/com_ariquiz/assets/css and copied it to the new theme's css file and renamed it overrides.css (as you could see above)
3- After this I stated making all the changes to adapt it to my needs.
My question is: Would this change really override what is primarily designed in from /components/com_ariquiz/assets/css, or would it overload the website with some loop code running in the background?