How to change the icon in the site slider?

Question

css

The site has a slider (taken from another site)

Picture

It works, everything is as it should be, but it does not display the switch arrows.
Question.
How can I remove the icon from the working slider? Or how can I install mine?
My site and the site from where I take the design as a whole.

Answer 1

Arrows don't have images this is SVG
icn-arrow-l-light

<svg class="icn-arrow-l-light" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 12 24">
  <path d="M12 0L0 12l12 12"></path>
</svg>

icn-arrow-r-light

<svg class="icn-arrow-r-light" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 12 24">
  <path d="M0,24l12-12L0,0"></path>
</svg>