designResolutionSize and screen ratio

Hi,
For all my apps I use designResolutionSize 960x640 (and resources resolution 960X640) ratio 3:2.
But it looks like most of smartphones have ratio 16:9.

What do you use for your aps - 1280x720?

In default cpp template there is:
static cocos2d::Size designResolutionSize = cocos2d::Size(480, 320);
static cocos2d::Size smallResolutionSize = cocos2d::Size(480, 320);
static cocos2d::Size mediumResolutionSize = cocos2d::Size(1024, 768);
static cocos2d::Size largeResolutionSize = cocos2d::Size(2048, 1536);

Regards,
CHP

just simply change your design resolution size to 1280x720