EnumBackgroundType类 参考

Public 成员函数
String	toString ()

静态 Public 属性
static final EnumBackgroundType	Color = new EnumBackgroundType("Color")
static final EnumBackgroundType	GradientColor = new EnumBackgroundType("GradientColor")
static final EnumBackgroundType	Image = new EnumBackgroundType("Image")
static final EnumBackgroundType	SkyBox = new EnumBackgroundType("SkyBox")