The Lumia 930 is likely to go down as one of the most divisive Lumias to date. It has not quite lived up to the Lumia 920 legacy, and there are still numerous reports of overheating and screen discolorations. The latter issue is likely due to the use of AMOLED instead of LCD and Lumias have always had some purple tint issues with those types of displays.
Now, the @LumiaHelp account, which offers "global help from Microsoft technical experts for Lumia and Nokia-branded devices" has informed one owner of the Lumia 930 that a fix is on the way.
Full story from the WindowsCentral blog...