[MarkFL]

Yes, in general, you will get help more promptly when asking questions about a specific product in the thread for that product. Just please keep that in mind for future questions.

That appears to be Valter's Chatbox, and what you can do is add a plugin, hooked at "parse_templates" with the Plugin PHP Code:

PHP Code:

if (THIS_SCRIPT === 'misc')
{
    $template_hook['headinclude_css'] .= '<style>#vsacb_muldel tr {background: #FFFF00 !important;}</style>';
} 


Change the value "#FFFF00" (this is bright yellow) to the color of your choice.