Custom socials logo in Mobile dropdown menu

Site URL: https://www.at17c.com/

Hello.

I have made a custom Instagram logo, which works fine on the computer, in the navigation bar.
But on mobile, whenever I enter the overlay menu, it goes back to the original Instagram logo. 
How do I add my custom IG logo to the overlay menu as well. 
I will attach some screenshots of how it looks, and the logo I want to use. 

Code for website is: basement

TIA

1 hour ago, at17c said:

Site URL: https://www.at17c.com/

Hello.

I have made a custom Instagram logo, which works fine on the computer, in the navigation bar.
But on mobile, whenever I enter the overlay menu, it goes back to the original Instagram logo. 
How do I add my custom IG logo to the overlay menu as well. 
I will attach some screenshots of how it looks, and the logo I want to use. 

Code for website is: basement

TIA

Try adding to Home > Design > Custom Css

.header--menu-open .header-menu-actions-action [href*='instagram']  svg{
  visibility: hidden;
}
.header--menu-open .header-menu-actions-action [href*='instagram'] {
  position: relative;
}
.header--menu-open .header-menu-actions-action [href*='instagram']:after {
  content:'';
  background-image: url('your.');
  background-size: 100%;
  background-position: 50% 50%;
  background-repeat: no-repeat;
  display: block;
  position: absolute;
  width: 100%;
  height: 100%;
  top:0;
}

change the url with your image

Let me know how it works on your site

It worked perfectly - thank you so much!