sprites: output to bitmap image

[bmedici]

Carefully written requests are more likely to be given priority.
丁寧に記述された要望は優先して対応される可能性が高くなります。

Is your feature request related to a problem? Please describe.
For some projects, I find myself using the display the same way:

• prepare a display background (things that never change)
• store this into a sprite
• push this background
• draw above it for the updating parts
  When the display area is big, we may be unable to allocate memory for these sprites.
  The background part never changes and could be stored permanently.

Describe the solution you'd like
Generating the background on the device si mandatory, as doing this using external software would not be pixel-perfect.
I'd like to be able to generate this background, store it as a bitmap file on the board, in the SPIFFS filesystem for example.
This way I could import it easily everytime I need to redraw.

Describe alternatives you've considered
Storing this background into a sprite is easier and seem a better idea. However, it uses RAM and for "large" sprites, this option is not possible with only 4MB of RAM and far less os contiguous useable RAM.

Additional context
Thank for any solution to this !

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions]

This issue has been automatically closed because it has not had recent activity. Thank you for your contributions.

[bmedici]

No interest or plans about this idea ?