Thrawn's Revenge is a large-scale mod for Empire at War: Forces of Corruption. It includes the events of the Galactic Civil War after Palpatine's death at Endor, up until the signing of the Pellaeon-Gavrisom treaty.
If you own the Steam version of EaW, you will have to complete extra steps to run the mod after installation. Please see the manual for these steps.
The new map for Duro in 2.0, by Enceladus. The yellow is just from boundaries, these were taken in the Map Editor.
The planet was essentially rendered uninhabitable years before the Battle of Endor, with only a few areas of the planet left safe.