[blindhippo]

Ahh ok - I think what I kept seeing were "Sponsored Images" on the new tab page. Finally found a setting that can be toggled to "Default Images" - hopefully that removes the ads. Some of them have been close to the line of appropriateness for me (i.e. weird anime mobile game ads with suggestive visuals - not something I want a full screen image for).

[nosefurhairdo]

Yep, definitely configurable. My new tab background is just a plain, purple-y gradient.