Problems to customize logo and slideshow

Hello
I placed a slideshow (RokSprocket) and set a fade effect between one slide and another, but I cannot see it.
I cannot even see the navigation arrows on the side of the slides.
I wish I could have a logo like in your demo in 2 colors black on white and white navigation bar on image (vd attachments)
Also the logo on the mobile version is too big, how can I modify it?
thanks
best regards
Giuseppe

If you want to have the same outlook then please use our quickstart installation and read the instructions