Navagation Icons turned off but still appear

Hi – I’m looking to make a slideshow with no icons or overlays on- I’ve turned them all off in the styles interface, but the navigation icons still appear in some browsers. Is there some way to force them off in all browsers? (appears in chrome, but more importantly on my raspberry pi signage setup where I need no icons) If this can be removed I will definitely want pro as out of all the slideshow solutions CK seems to work the best for me.
Thank you!

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