code/game/turfs/strata.dm

/turf/open/floor/strata/cyan1	strata - cyan
/turf/open/floor/strata/orange_edge	strata - orange
/turf/open/floor/strata/blue1	strata - blue
/turf/open/floor/strata/green1	strata - green
/turf/open/floor/strata/purp1	strata - purple
/turf/open/floor/strata/red1	strata - red