Possible values for an enum aa_attribute are as follows:
AA_NORMAL
Normal characters.
AA_DIM
Dark characters.
AA_BOLD
Bright characters.
AA_BOLDFONT
Characters rendered in bold font.
AA_REVERSE
Reversed (black on whilte) characters.
AA_SPECIAL
Render characters in a way easilly visible on the
screen. The exact rendering is driver dependent,
but this mode ought to be used to output texts you
want to make easilly visible in the image.
const char *fmt
Text to output in standard printf format.
...
Not Documented.
DESCRIPTION
Print given text to AA-lib output buffers. To see the effect you need to
call aa_flush too.