The Freeciv.net Project needs Logo/Icon/Splash Screen

Freeciv.net

Now you can help design a cool icon, logo and splash screen for the Freeciv.net project.

Freeciv.net is an open-source turn-based strategy game. It’s built entirely in HTML5 and features in-depth game-play and a wide variety of game modes and options. Your goal is to build cities, collect resources, organize your government, and build an army, with the ultimate goal of creating the best civilization.

Please see http://www.freeciv.net for more information.

The target audience are gamers playing casual games on the web.
The images which will be designed in this contest will be displayed on Facebook, Twitter, Google Web Store etc.

The Freeciv.net project needs help with graphics design with a new icon/logo/splash screen.

Icon/Logo should be usable on Facebook, Twitter, Google Web store.

Please see the http://www.freeciv.net website, and use your imagination to create an image which looks nice.

These are the sizes that I would like to use the image in:

Web application Icon:
Facebook: 200x200
Twitter: 73x73, 48x48
Google Web Store: 128x128

Project Logo: 768x148

Splash Screen: 768x768

Icon, Logo, Splash Screen must contain the text "Freeciv.net".
The images must look nice on both a black and a white background.

The old logo is attached.