[Mageia-artwork] Specs of JPEG format needed for gfxboot

[Romain d'Alverny]

Hi there,

ennael asked gfxboot devs hints about the exact format required so it
does get displayed (it does not at this time).

Here's the quote that may help:

> if you mean the jpeg format, it must be color jpeg, 2x2 color
> sampling, non-progressive. E.g. create it with cjpeg
> from the jpeg package ('cjpeg -optimize -quality 90 ...').

Now, I'm not sure if this can be set at the source each of you use, or
if we should have a script that checks & converts if needed before
being committed into the package?

Advice?

Romain