How an image's data is to be treated by EFL, for optimization.
Since 1.23
enum Efl.Gfx.Image_Content_Hint { none: 0, dynamic: 1, static: 2 }
typedef enum { EFL_GFX_IMAGE_CONTENT_HINT_NONE = 0, EFL_GFX_IMAGE_CONTENT_HINT_DYNAMIC = 1, EFL_GFX_IMAGE_CONTENT_HINT_STATIC = 2 } Efl_Gfx_Image_Content_Hint;