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Cricket will continue to test all colours of the rainbow to find one suitable for the right ball to be used in bad light or day-night Test matches.
International Cricket Council chief executive Dave Richardson admits it is an ongoing struggle, with no solution yet easily in sight, to prevent repeats of the scenes which saw England's run chase against Pakistan stopped in its tracks in the first Test.
Richardson, speaking at the ICC headquarters in Dubai, clarified reports that a 'greeny-yellow' ball may be the answer to the age-old snag of bad light.
A pink one is to be used in next month's inaugural day-night Test between Australia and New Zealand in Adelaide, and it seems that is still the front-running colour - but by no means the only one.
It is just two days since England's victory hopes in Abu Dhabi were dashed when a combination of gathering dusk, the Zayed Cricket Stadium floodlights and a traditional red ball convinced the umpires it was not feasible to play the scheduled final eight overs in which the tourists needed just 25 runs, with six wickets left, to go 1-0 up in the three-match series against Pakistan.
Richardson was subsequently quoted as saying that a "pink or greeny yellow" ball may eventually solve the problem.
But in a press conference on Monday, he said: "I was just talking about a different-coloured ball, and said 'pink, yellow, green, whatever' ... nothing specific but more with the principle of trying to develop a different-coloured ball that you can see in day-night conditions or under floodlights, and one that lasts the pace."
A shade of green or yellow, in fact, seems one of the least likely possibilities.
Richardson added: "The ball wears out and gets dirty.
"So if it's a greeny-yellow type colour, and a dirty one, not a nice fluorescent one like a tennis ball, it's going to be difficult to see on a green pitch.
"We've trialled pink balls and orange balls before, and the yellow-green one has actually been trialled but found to be wanting, simply because as soon as it gets a little bit old it becomes dull and very difficult to see.
"We are pinning some hope on developing a ball, a different-coloured ball ... a pink ball, at this stage anyway.
"If we can use it for day-night Test cricket, it might be if it stays in a decent enough condition and can be of good enough quality and doesn't change the game too much - from a swing point of view etcetera - long term we can use that different-coloured ball for Test cricket in all matches."