visual issue: the search bar on the new tab page is inconsistent

Small visual issue but still should be fixed: on the new tab page, if you select "Focused" or Custom > turn off Background, the search button/icon in the search box gets this blue background behind it and it just looks really ugly and distracting (I put a red arrow pointing to it in the screenshot below). It should have the same nice clean, minimalist one you get with "Inspirational" or "Informational" modes! Please fix this, thank you 🙂