(ii)you may not modify the Steam Client, except that, in the case of the Linux version of the Steam Client, you may modify scripts and other documentary and graphical files, but not any files containing the term "bootstrap" in the file name, provided that you do not modify any icons, change any copyright or other notices, or alter this or any other license agreement that is included with the Steam Client, and provided further that any modifications you make are identified by you as modifications from the original Steam Client provided by Valve;