A feeling or appearance of optimism.
1974, “April's Fading Carnation,” Time, 9 September, 1974,https://web.archive.org/web/20130813201436/http://www.time.com/time/magazine/article/0,9171,904100,00.html
The independence ceremony could not keep the blush of April's revolution, when carnations had seemed to sprout from every buttonhole, from fading.
2016, David McKay, “AngloGold to fire up dividend in 2017 as net debt cut a third,” miningmx.com, 15 August, 2016,
The weakening of local currencies – in Argentina, Australia and Brazil – gave a blush to the financial numbers. (As a whole, all-in sustaining costs (AISC) improved to an average of $911/oz compared with the $924/oz recorded in the first half of 2015).