This map is a complete port of gm_portal_challenge, an old Portal map for Gmod 9 from 2006. This map is intended for use with the 2017 release of Portal Project Beta. Playing this map in vanilla Portal will result in missing textures.
The indicator lights do not change color because they are intended to stay orange like in the earlier builds of Portal. I've included the static orange indicator light textures in the map, to install them unpack portal_materials_dir.vpk and repack it with the modified textures.
This map was originally created by DaMan and ported by CabooseJr and gamehacker655.