Hi zannoni

You have first to change some setting on Theme Options, please read the following article to learn more about menu types. You have to set to Default the value of Select color palette for this menu type 

(view large version)

Thank you.

Hi zannoni

You can learn more about custom skin in our article how to create my own skin.

Thank you.

Hi zannoni

Do change color of selected item you can do that over Custom CSS.  Please after reading the article past the code below for it

.main-header.menu-type-standard-menu .standard-menu-container div.menu>ul li.current-menu-item a, 
.main-header.menu-type-standard-menu .standard-menu-container ul.menu li.current-menu-item a{
    color: #e2e2e2 !important;
}

Can you provide us with Wp Credentials, we have to look from close view.

To include your credentials click Insert Credentials button in editor toolbar. (See how)

Thank you.

Hi zannoni

I'm really glad that the solution worked and you can continue to work on your site now :)

Remember to read Kalium Documentation, you can find some very useful things there that will help you to create a great site. 

P.S: If you like our theme, it would help us a lot if you could give us five star rating on themeforest from your Downloads tab, (if you don't know how, just open this link). A huge thank you from Laborator in advance and have a great day!

Will set this ticket as solved from here.

Thank you