Made these for the upcoming 1.6 release of Gravis City: Industrial Zone 7.
File naming guide:
stoplight4XL -- 4 lights, X cycle, Left turn arrow (4XL)
stoplight4XR -- 4 lights, X cycle, Right turn arrow (4XR)
stoplight4YL -- 4 lights, Y cycle, Left turn arrow (4YL)
stoplight4YR -- 4 lights, Y...