Garden Gnome Software

Hi guys,
I need a little help. How do I create this infinite looping light animation moving across the textbox like in this video? Can it be done using the timers?

You would use a mix of modifiers, logic, and yes, maybe timers, too. Check out the beginning of this webinar. Maybe it gives you a few hints.
https://ggnome.com/gg_webinars/skin-element-modifiers/