A modpack by by An7hraX. To install colour correction / cell shading, you simply need to paste appropriate folder contents (e.g. "ColorCorrection") to...
An7hraX is the main author of the modification, and the following files:
BlackNinja.tpf, BlackNinjaEyes.tpf, Damascus_night.tpf, Ezio Auditore De Firenze.tpf, Red_Livery_Assassine_Version_1.tpf, Red_Livery_Assassine_Version_2.tpf.
.forge file extractor/replacer was created by Turfster.
Jerusalem_night.tpf is an own work not created by any of the above authors, and a night skybox textures uses Sed-rah-Stock's picture.
This mod is only for PC version of Assassin's Creed.
Contains a .tpf file that lets you play Jerusalem at night. Source textures are also included. Uses a night sky texture based on a photo by Sed-rah-Stock, particularly this one:
Also a tutorial how to make your own texture modifications was written, you can head to Tutorials section to view it:
How to extract & replace textures tutorial
For additional tips you can ask at the main mod profile (comments box).