All categories icon, cart icon and brand

Hello,

1) Add the below code to Theme Options > Custom CSS

.et_b_header-menu .secondary-menu-wrapper .menu>li>a i {
    min-width: 21px;
    color: #c83aa2;
}

2) Add the below code to Custom CSS

.et_product-block .single_add_to_cart_button:before {
    display: none;
}

3) We don’t have such option. You can show the brand in these locations only https://prnt.sc/1iri2sw (Theme Options > WooCommerce > Shop Elements > Brands).

4) You can show the variation swatches either before product details or after https://prnt.sc/1irivz0 (Theme Options > WooCommerce > Shop Elements > Variation swatches).

5) Because you need to choose the variation to add a variable product to the cart. You can set the default variation in the product settings to get add to cart button https://prnt.sc/1irjkz4

Regards