When playing the previous part of the series, GTA Vice City, one could notice that the road barriers blocking the way to get to another island flashed with lights, but there are no lights in San Andreas. However, thanks to this modification, all barriers in the game will now flash.
The dff files have been updated to include a 2dfx light effect, but the models themselves have not been affected in any way. Used IDs from 4504 to 4527.