Timothy <orgmode@tec.tecosaur.net> writes:

>> 3. It took 20+ seconds (!!!) to generate previews in a single section in
>>    my large notes.org. Profile attached - org-latex-preview parses the
>>    whole 20Mb buffer to generate the preamble. Why?
>
> Because of the use of buffer info in generating the preamble, which calls
> `org-export--annotate-info'. I’m currently considering introducing a variable to
> allow for the use of buffer-specific info to be toggled.

What if `org-export--annotate-info' could be made async?

>> 5. Why triangles? Something resembling “waiting” would be more
>>    meaningful.
>
> It has to be a small icon, so that basically means simple geometric shapes only.
> There’s also the “grey text” indicator, and “no indicator” option.

What about

(define-fringe-bitmap
    'sand-clock
    [#b11111111
     #b10000001
     #b01000010
     #b01000010
     #b01101110
     #b00111100
     #b00011000
     #b00100100
     #b01000010
     #b01011010
     #b11111111
     #b11111111])