Streamline Theme - Changing color of the cart icon

Streamline Theme - How can you change the color of the cart icon. Also I have this code to make my menu items bigger but it is also making the icon with the cart bigger if anyone has a fix:

@media (min-width: 750px){
.header-item *{
font-size: 28px !important;
}

website - provengrit.us

Hello @ProvenGrit

You can try this code: it will be helpful to you

Go to the Online Store->Theme->Edit code->Assets->theme.css>Add this code at the bottom.

svg.icon.icon-cart {
    background: red;
    border-radius: 40px;
}

Hi, thanks for the response. it looks like this now

Hello @ProvenGrit

You can try this code: it will be helpful to you

Go to the Online Store->Theme->Edit code->Assets->theme.css>Add this code at the bottom.

.cart-has-items .site-nav__link--cart.site-nav__link--cart {
    color: red !important;
}

Thanks so much for helping. I want the background (the green part) to change color. Is that something that you can do?