The Finnish standard. One 12-color sequence drives both tube and
fiber-position axes, its own order — not TIA/EIA-598, not
S12, not DIN 0888. Note: on higher fiber counts (13–24,
25–36...), a repeat that lands on Black is left unmarked
instead of ring-marked, since a ring wouldn't show on black. For
FIN2012 that's fiber 21, 33, and so on.
Color order (tube & fiber):BlueWhiteYellowGreenGreyOrangeBrownAquaBlackPurplePinkRed