• For color, grayscale or monochrome displays
• Supports multiple displays (but also contains simple singledisplay mode)
• Designed for low throughput bus with framebuffer on the panel side (write-only)
• proportional fonts (please do not use fnt_x.h fonts in your projects)
• overwrites text, can also overwtite entire line within the working area (canvas). no need to clean.
• default colors are ARGB 8888. You can implement static dither for 565 panels inside pixelOut (i'll try to add example later)
• contains HSV-RGB converter

Please, provide in mgl_conf.h:

• #define MGL_ASSERT()
• #define MGL_SINGLEDISPLAY if you don't need multiple
• DISPLAY_SIZE_X DISPLAY_SIZE_Y for default single display implementation
• your own fonts (TBD)
• for multimple displays you need to create MglDisplay struct for each
  • setZone is the command for limiting the canvas. pixels expected sequence is left->right, top->bottom. This command has hardware analog on most tft controllers, so you need to translate it to one SPI/IIC request. In case of monocrome lcd, same behavior is emulates for framebuffer.
  • pixelOut should write one pixel - one SPI/IIC transaction for most color screens
  • update is just a wrapper, it may be used for triggering local framebuffer to panel transfer in case this process is application-driven
• you can use https://www.pentacom.jp/pentacom/bitfontmaker2 for font editing. use python3 convert.py fontname.json for export to fontname.c file.
• use rearrange.py to convert existing fonts to bitfontmaker2 format (manual tuning needed, paste array to file)

• FONTS!!! add more and probably adopt this lib to common free fonts
  • convert.py save font image
  • clean - check if all of them are ok and delete if not, get others from hdd ?
• lines and circles ??
• add color dithered examples