Show image form SD-card in M291

[Swaper]

M291 should be able to show images from SD card
Hi everybody, i am a newbie on this forum , but already spent more then 7 years of my life with Duet boards.
So now I am trying to make a "low-user" friendly printer, based on Duet Wifi + PanelDue. I have created a handy menu using macro folder, i am able to conduct a dialog with user, but sometimes I need to show a picture to explain in more convenient way what to do next. It would be very handy if M291 command with some flag be able to show pictures from SD card.
P.S. Also would be great to have same feature in DWC

[chrishamm]

@Swaper It is already possible to use HTML, but be aware that this greatly limits the usable message space. Example:

M291 S1 P"Hello <img src=""img/icons/android-chrome-192x192.png"">"