我知道如何从Storyboard设置项目的全局色调.但是如何编程色调？
苹果的文档可以说是很多：
Every WatchKit app has an associated key color,which is applied to
the >following UI elements:-The title string in the status bar
-The app name in short look notifications
An app’s key color is stored in the Global Tint property of the app’s
storyboard. To access this property,select your storyboard and
display the File inspector. Select one of several preexisting colors
from the popup menu or use the color picker to specify a custom color.
但是可以编程吗
