Feeling faint: Northern Rail's invisible bike signs

I've been busy blogging elsewhere, cycling Land's End to John o'Groats.

But back home in York, I was pleased to see that Northern Rail continues to make those of taking bikes on trains feel special. Such as on the service to Hull (picture).

Most passengers would naively expect the cycle spaces - which, in fact, are behind this door here (picture) - to be indicated by some sort of visible sign.

Hah! Not likely! The magic mark (above the yellow rectangle on the left-hand side in the image above) is near-transparent, applied in special non-seeable paint (picture - heavily modified by software to make it more prominent), so that only the chosen few, 'real', cyclists know where to go.