1) yep! that’s emulation station, but it has a theming system. press start when it’s loaded and go to UI settings, and you can select the theme there. you can download new themes in the retropie-setup menu, but i imagine you’ll have to amend the existing for your needs. i thought there was some online help about how to create themes but i can’t find it 🙁 there’s a theme forum here and people have created some really nice ones, so hopefully someone can help @ http://blog.petrockblock.com/forums/forum/retropie-project-forum/emulation-station-2-x-themes/
2) there’s an option in the es start menu options > UI settings > ‘on-screen help’ – i think if you turn it off it gets rid of that stuff?