Vertical grey line with orange cursors animation

Good morning guy,

Thank you for making this awesome theme available for download.
One question, I have noticed that every page has grey thin vertical lines with animated orange cursors sliding top to bottom. Every page seems to have an image in the background as well. Where do I find the style or the files or the calls to functions containing the style for that?

Thank you in advance for your support. Keep up the excellent work.
Best, MrT