I made a quick png from the wallet logo since Bittrex is looking for a logo to add to its spotlight section. I assume a jpg is available, but just in case you don't have a png handy

http://i1339.photobucket.com/albums/o709/klangley11/libertycoin_zpsf0f06508.png

...and this one works better for them, has the transparent background:

http://i1339.photobucket.com/albums/o709/klangley11/libertycoin_251x251_zps6f44b07f.png