Sentence:  The weakening of local currencies – in Argentina, Australia and Brazil – gave a <WSD>blush</WSD> 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). 
Meaning of the word marked with <WSD> tags:  Feeling or appearance of optimism.