You can freely use these logos for anything you want.
Creative Commons Zerolicense, so go nuts. Feel free to suggest any color-combinations & I'll try my best to fulfill your suggestions.To Download: Simply Right Click The Logo You Like, And Click "Save Image As"
I'm also in the process of making some "Powered By Steem" graphics, but would like to pick the community's brain on what wording / phrasing works best.
Answer the question at dpoll.xyz.