Types of content modes
#include <screen/screen.h>
enum { SCREEN_CBABC_MODE_NONE = 0x7671, SCREEN_CBABC_MODE_VIDEO = 0x7672, SCREEN_CBABC_MODE_UI = 0x7673, SCREEN_CBABC_MODE_PHOTO = 0x7674 };
The CBABC (content-based automatic brightness control) refers to the brightness control that's based on content, not ambient light. However, this enumeration is used mainly to describe the content type of the window, rather than the brightness control. If not set, the type defaults to the mode of the display framebuffer.