sentences:  It is revealed in "Green Lantern" #25 that the Zamarons have been experimenting with the emotional energy of love (represented by violet in the emotional color spectrum) in preparation for an upcoming war, the prophesied "War of Light".Since then it has also been revealed, during a Guardian diplomatic mission to Zamaron, that the Zamarons have begun experimenting on captive Sinestro Corps members, hoping to "amplify the love within their hearts", thus making them less violent.Guy Gardner, however, feels that whatever they do will not change the fact that the captives are psychotic and cruel, while other Green Lanterns were appalled at the thought of the prisoners' hearts and souls being subverted to the Zamarons' will.